replace firefox with firefox-esr package

Extended Support Release of firefox browser with a long term support
plan. The same is also maintained in Debian Stable. The browser is part
of the :sdk component

Signed-off-by: Ritesh Raj Sarraf <ritesh.sarraf@collabora.com>

apertis-ospack-basesdk.yaml

@@ -288,7 +288,7 @@ actions:
       - evolution-data-server-doc
       - fakeroot
       - file
-      #- firefox
+      - firefox-esr
       - flex
       - g++-aarch64-linux-gnu
       - g++-arm-linux-gnueabihf

apertis-ospack-sdk.yaml

@@ -403,7 +403,7 @@ actions:
       - evolution-data-server-doc
       - fakeroot
       - file
-      #- firefox
+      - firefox-esr
       - flex
       - g++-aarch64-linux-gnu
       - g++-arm-linux-gnueabihf