Sanitize user home on GitHub Action job start on Atlas

(cherry picked from commit 4e8eb91)

Author: yrodiere

.github/ci-prerequisites-atlas.sh

@@ -0,0 +1,6 @@
+# Reclaims disk space and sanitizes user home on Atlas infrastructure
+
+# We use the GitHub cache for the relevant parts of these directories.
+# Also, we do not want to keep things like ~/.gradle/build-scan-data.
+rm -rf ~/.gradle/
+rm -rf ~/.m2/

.github/workflows/atlas.yml

@@ -41,8 +41,8 @@ jobs:
       - uses: actions/checkout@v4
         with:
           persist-credentials: false
-      - name: Reclaim Disk Space
-        run: .github/ci-prerequisites.sh
+      - name: Reclaim disk space and sanitize user home
+        run: .github/ci-prerequisites-atlas.sh
       - name: Start database
         env:
           RDBMS: ${{ matrix.rdbms }}