Rename 5.x.x-stable branch to v5.x

Author: acogoluegnes

.github/dependabot.yml

@@ -24,7 +24,7 @@ updates:
     schedule:
       interval: "daily"
     open-pull-requests-limit: 20
-    target-branch: "5.x.x-stable"
+    target-branch: "v5.x"
     ignore:
       - dependency-name: "org.eclipse.jetty:jetty-servlet"
         versions: ["[10.0,)"]
@@ -45,4 +45,4 @@ updates:
     directory: "/"
     schedule:
       interval: "daily"
-    target-branch: "5.x.x-stable"
+    target-branch: "v5.x"

.github/workflows/test-supported-java-versions-5.x.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - uses: actions/checkout@v6
         with:
-          ref: 5.x.x-stable
+          ref: v5.x
       - name: Checkout tls-gen
         uses: actions/checkout@v6
         with: