Trigger ARM int tests for edge releases as well

Used to be triggered only for stable releases, but now that 2.9 stable
approaches let's turn it on for the upcoming RCs.

.github/workflows/release.yml

@@ -137,11 +137,11 @@ jobs:
     needs: [docker_build]
     steps:
     - name: Checkout code
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       # actions/checkout@v2
       uses: actions/checkout@722adc6
     - name: Try to load cached Go modules
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       # actions/cache@v1.1.2
       uses: actions/cache@70655ec
       with:
@@ -150,7 +150,7 @@ jobs:
         restore-keys: |
           ${{ runner.os }}-go-
     - name: Install linkerd CLI
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       run: |
         TAG="$(CI_FORCE_CLEAN=1 bin/root-tag)"
         CMD="$PWD/target/release/linkerd2-cli-$TAG-linux-amd64"
@@ -161,19 +161,19 @@ jobs:
         echo "Installed Linkerd CLI version: $TAG"
         echo "CMD=$CMD" >> $GITHUB_ENV
     - name: Set KUBECONFIG environment variables
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       run: |
         mkdir -p $HOME/.kube
         echo "${{ secrets.ARM64_KUBECONFIG }}" > $HOME/.kube/config
         echo "KUBECONFIG=$HOME/.kube/config" >> $GITHUB_ENV
         kubectl cluster-info
     - name: Run integration tests
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       env:
         RUN_ARM_TEST: 1
       run: bin/tests --images skip --skip-kind-create "$CMD"
     - name: CNI tests
-      if: startsWith(github.ref, 'refs/tags/stable')
+      #if: startsWith(github.ref, 'refs/tags/stable')
       run: |
         export TAG="$($CMD version --client --short)"
         go test -cover -race -v -mod=readonly ./cni-plugin/test -integration-tests