Draft: PoC: Run Vale style check

Wippy wip.

scripts/vale-to-junit-testcase

+#!/usr/bin/jq -fsr
+
+.[] |
+to_entries | [
+    .[] |
+    {
+        suite: input_filename,
+        filename: .key,
+        failures: ([
+            "<failure message=\"" + @html "\(.value[].Message)" + "\" />"
+        ] | unique),
+    }
+] |
+    "<?xml version=\"1.0\" encoding=\"utf-8\"?>",
+    "<testsuite errors=\"\(. | length)\" failures=\"0\" name=\"vale\" skips=\"0\" tests=\"1\" >",
+    (.[] |
+        "<testcase classname=\"" + @html "\(.filename)" + "\" " +
+                       "file=\"" + @html "\(.filename)" + "\" " +
+                       "name=\"" + @html "\(.filename)" + "\" " +
+                       ">",
+        (.failures | join("\n")),
+        "</testcase>"
+    ),
+    "</testsuite>"