Add permissions that were missed on the first pass (#1871)

Co-authored-by: otelbot <197425009+otelbot@users.noreply.github.com>
Co-authored-by: Kayla Reopelle <87386821+kaylareopelle@users.noreply.github.com>

Author: 3 people

.github/workflows/release-hook-on-push.yml

@@ -12,6 +12,7 @@ jobs:
   release-update-open-requests:
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby' }}
     permissions:
+      contents: write # required for pushing changes
       pull-requests: write # required for updating open release PRs
     env:
       ruby_version: "3.1"

.github/workflows/release-request-weekly.yml

@@ -11,6 +11,7 @@ jobs:
   release-request:
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby' }}
     permissions:
+      contents: write # required for pushing changes
       pull-requests: write # required for creating release PRs
     env:
       ruby_version: "3.1"

.github/workflows/release-request.yml

@@ -15,6 +15,7 @@ jobs:
   release-request:
     if: ${{ github.repository == 'open-telemetry/opentelemetry-ruby' }}
     permissions:
+      contents: write # required for pushing changes
       pull-requests: write # required for creating release PRs
     env:
       ruby_version: "3.1"