build: Run workflows on v7.x

Author: gaeljw

.github/workflows/build.yml

@@ -4,6 +4,7 @@ on:
   pull_request:
     branches:
     - main
+    - v7.x
 
 jobs:
   build:
@@ -68,4 +69,4 @@ jobs:
           java-version: ${{ matrix.java }}
 
       - name: Version check
-        run: sbt "project cucumberScala" versionPolicyCheck
+        run: sbt "project cucumberScala" versionPolicyCheck