Extend RC testing period

Update the release schedule to extend the RC testing period to have
enough time to run all the planned tests and still have some buffer
to release and a new RC in case of a major issue. With this new
schedule, RC testing period will be two weeks.

This new release schedule does not affect the release date, which
means that RC testing periods will overlap with different releases.

Signed-off-by: Walter Lozano <walter.lozano@collabora.com>

content/release/v2021.5/release_schedule.md

@@ -10,10 +10,10 @@ The v2021.5 release cycle started in January 2022.
 | Milestone                                                                                                | Date              |
 | -------------------------------------------------------------------------------------------------------- | ----------------- |
 | Start of release cycle                                                                                   | 2022-04-01        |
-| Soft feature freeze: end of feature proposal and review period                                           | 2022-05-18        |
-| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-05-25        |
-| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-06-01        |
-| RC testing                                                                                               | 2022-06-02..06-08 |
+| Soft feature freeze: end of feature proposal and review period                                           | 2022-05-11        |
+| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-05-18        |
+| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-05-25        |
+| RC testing                                                                                               | 2022-05-26..06-08 |
 | v2021.5 release                                                                                          | 2022-06-09        |
 
 If the release candidate 1 does not successfully pass all required

content/release/v2022.1/release_schedule.md

@@ -10,10 +10,10 @@ The v2022.1 release cycle started in January 2022.
 | Milestone                                                                                                | Date              |
 | -------------------------------------------------------------------------------------------------------- | ----------------- |
 | Start of release cycle                                                                                   | 2022-01-01        |
-| Soft feature freeze: end of feature proposal and review period                                           | 2022-05-25        |
-| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-06-01        |
-| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-06-08        |
-| RC testing                                                                                               | 2022-06-09..06-15 |
+| Soft feature freeze: end of feature proposal and review period                                           | 2022-05-18        |
+| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-05-25        |
+| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-06-01        |
+| RC testing                                                                                               | 2022-06-02..06-15 |
 | v2022.1 release                                                                                          | 2022-06-16        |
 
 If the release candidate 1 does not successfully pass all required

content/release/v2023dev2/release_schedule.md

@@ -9,11 +9,11 @@ The v2023dev2 release cycle started in April 2022.
 
 | Milestone                                                                                                | Date              |
 | -------------------------------------------------------------------------------------------------------- | ----------------- |
-| Start of release cycle                                                                                   | 2022-04-01        |
+| Start of release cycle                                                                                   | 2022-05-25        |
 | Soft feature freeze: end of feature proposal and review period                                           | 2022-06-01        |
-| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-06-08        |
-| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-06-15        |
-| RC testing                                                                                               | 2022-06-16..06-22 |
+| Soft code freeze/hard feature freeze: end of feature development for this release, only bugfixes allowed | 2022-06-01        |
+| Release candidate 1 (RC1)/hard code freeze: no new code changes may be made after this date              | 2022-06-08        |
+| RC testing                                                                                               | 2022-06-09..06-22 |
 | v2023dev2 release                                                                                        | 2022-06-23        |
 
 If the release candidate 1 does not successfully pass all required