revert CI workflow file changes per PR feedback

Agent-Logs-Url: https://github.com/killbill/killbill-api/sessions/1f8b6476-7cdc-4f55-962a-99c86ec8d4fe

Co-authored-by: xsalefter <510438+xsalefter@users.noreply.github.com>

Author: Copilot

.github/workflows/ci.yml

@@ -7,6 +7,6 @@ on:
 
 jobs:
   ci:
-    uses: killbill/gh-actions-shared/.github/workflows/ci.yml@java21
+    uses: killbill/gh-actions-shared/.github/workflows/ci.yml@main
     with:
-      failure-upload-path: 'target/*' 
+      failure-upload-path: 'target/*' 

.github/workflows/codeql-analysis.yml

@@ -7,4 +7,4 @@ on:
 
 jobs:
   analyze:
-    uses: killbill/gh-actions-shared/.github/workflows/codeql-analysis.yml@java21
+    uses: killbill/gh-actions-shared/.github/workflows/codeql-analysis.yml@main

.github/workflows/release.yml

@@ -40,7 +40,7 @@ jobs:
       - name: Configure Java
         uses: actions/setup-java@v1
         with:
-          java-version: 21
+          java-version: 11
       - name: Configure Sonatype mirror
         uses: s4u/maven-settings-action@v2.3.0
         # Go to Sonatype directly to avoid delay syncs (could get rid of this if actions/setup-java were to support mirrors).
@@ -66,7 +66,7 @@ jobs:
       - name: Configure settings.xml for release
         uses: actions/setup-java@v1
         with:
-          java-version: 21
+          java-version: 11
           server-id: ossrh-releases
           server-username: OSSRH_USER
           server-password: OSSRH_PASS

.github/workflows/snapshot.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   snapshot:
-    uses: killbill/gh-actions-shared/.github/workflows/snapshot.yml@java21
+    uses: killbill/gh-actions-shared/.github/workflows/snapshot.yml@main
     secrets:
       OSSRH_USER: ${{ secrets.OSSRH_USER }}
       OSSRH_PASS: ${{ secrets.OSSRH_PASS }}