Simplify the create-pr workflow

Signed-off-by: Luiz Carvalho <lucarval@redhat.com>

.github/workflows/create-pr.yaml

@@ -90,32 +90,23 @@ jobs:
       run: git diff
       working-directory: infra-deployments
 
-    - name: Checkout infra-deployments-ci
-      uses: actions/checkout@d632683dd7b4114ad314bca15554477dd762a938 # v4.2.0
+    - uses: actions/create-github-app-token@5d869da34e18e7287c1daad50e0b8ea0f506ce69 # v1.11.0
+      id: generate-token
       with:
-        path: infra-deployments-ci
-
-    - name: Create PR in infra-deployments
-      env:
-        EC_AUTOMATION_KEY: ${{ secrets.EC_AUTOMATION_KEY }}
-        DEPLOY_KEY: ${{ secrets.DEPLOY_KEY }}
-        APP_INSTALL_ID: 32872589
-      run: |
-        set -o errexit
-        set -o pipefail
-        set -o nounset
+        app-id: ${{ vars.EC_AUTOMATION_APP_ID }}
+        private-key: ${{ secrets.EC_AUTOMATION_KEY }}
 
-        function createJWT() {
-          local header=$(echo -n '{"alg":"RS256","typ":"JWT"}' | base64 | sed s/\+/-/ | sed -E s/=+$//)
-          local now_utc=$(date --utc +%s)
-          local payload=$(echo -n '{"iat":'$((now_utc - 60))',"exp":'$((now_utc + 120))',"iss":245286}' | base64 | sed s/\+/-/ | sed -E s/=+$//)
-          local signature=$(echo -n "${header}.${payload}" | openssl dgst -sha256 -binary -sign <(echo "${EC_AUTOMATION_KEY}")| base64 | tr -d '\n=' | tr -- '+/' '-_')
-          echo "${header}.${payload}.${signature}"
-        }
-
-        GITHUB_TOKEN=$(curl -s -X POST -H "Authorization: Bearer $(createJWT)" -H "Accept: application/vnd.github+json" "https://api.github.com/app/installations/${APP_INSTALL_ID}/access_tokens" | jq -r .token) \
-        ./hack/create-pr.sh git@github.com:enterprise-contract/infra-deployments.git ../infra-deployments
-      working-directory: infra-deployments-ci
+    - name: pull-request
+      uses: peter-evans/create-pull-request@5e914681df9dc83aa4e4905692ca88beb2f9e91f # v7.0.5
+      with:
+        branch: ci/update-go-containerregistry
+        commit-message: enterprise contract update
+        sign-commits: true
+        signoff: true
+        title: enterprise contract update
+        token: ${{ steps.generate-token.outputs.token }}
+        push-to-fork: enterprise-contract/infra-deployments
+        path: infra-deployments
 
   create-build-definitions-pr:
     if: >