Update version bump to utilize signed commits (#27)

* added capablity to sign commits through service account

* pinned gha for importing gpg key

* added steps to login to AZ KV + referencing secrets

.github/workflows/version-bump.yml

@@ -17,6 +17,26 @@ jobs:
       - name: Checkout Branch
         uses: actions/checkout@ec3a7ce113134d7a93b817d10a8272cb61118579
       
+      - name: Login to Azure - Prod Subscription
+        uses: Azure/login@1f63701bf3e6892515f1b7ce2d2bf1708b46beaf
+        with:
+         creds: ${{ secrets.AZURE_PROD_KV_CREDENTIALS }}
+
+      - name: Retrieve secrets
+        id: retrieve-secrets
+        uses: bitwarden/gh-actions/get-keyvault-secrets@c3b3285993151c5af47cefcb3b9134c28ab479af
+        with:
+          keyvault: "bitwarden-prod-kv"
+          secrets: "github-gpg-private-key, github-gpg-private-key-passphrase"
+
+      - name: Import GPG key
+        uses: crazy-max/ghaction-import-gpg@c8bb57c57e8df1be8c73ff3d59deab1dbc00e0d1
+        with:
+          gpg_private_key: ${{ steps.retrieve-secrets.outputs.github-gpg-private-key }}
+          passphrase: ${{ steps.retrieve-secrets.outputs.github-gpg-private-key-passphrase }}
+          git_user_signingkey: true
+          git_commit_gpgsign: true
+
       - name: Create Version Branch
         run: |
           git switch -c version_bump_${{ github.event.inputs.version_number }}
@@ -35,8 +55,8 @@ jobs:
 
       - name: Commit files
         run: |
-          git config --local user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git config --local user.name "github-actions[bot]"
+          git config --local user.email "106330231+bitwarden-devops-bot@users.noreply.github.com"
+          git config --local user.name "bitwarden-devops-bot"
           git commit -m "Bumped version to ${{ github.event.inputs.version_number }}" -a
           
       - name: Push changes