Fix secret references in workflow files (DataDog#21154)

Author: Kyle-Neale

.github/workflows/backport-pr.yml

@@ -24,7 +24,7 @@ jobs:
         id: token-generator
         with:
           app-id: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_APP_ID }}
-          private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY_2 }}
+          private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY }}
           repositories: integrations-core
       - uses: tibdex/backport@9565281eda0731b1d20c4025c43339fb0a23812e # v2.0.4
         with:

.github/workflows/labeler-community.yml

@@ -20,4 +20,4 @@ jobs:
     uses: ./.github/workflows/labeler-reusable.yml
     secrets:
       app-id: "${{ secrets.DD_AGENT_INTEGRATIONS_BOT_APP_ID }}"
-      private-key: "${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY_2 }}"
+      private-key: "${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY }}"

.github/workflows/update-agent-changelog.yml

@@ -41,7 +41,7 @@ jobs:
       id: token-generator
       with:
         app-id: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_APP_ID }}
-        private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY_2 }}
+        private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY }}
         repositories: integrations-core
     - name: Create Pull Request
       id: cpr

.github/workflows/update-dependencies.yml

@@ -32,7 +32,7 @@ jobs:
       id: token-generator
       with:
         app-id: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_APP_ID }}
-        private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY_2 }}
+        private-key: ${{ secrets.DD_AGENT_INTEGRATIONS_BOT_PRIVATE_KEY }}
         repositories: integrations-core
     - name: Update dependencies
       run: |-