ci: Gate manual release workflows on wait-for-checks

Replace each release workflow's inline code/tests checks with a
`wait-for-checks` step that verifies the `Checks` workflow already passed
on the dispatch commit (it runs via `on_master.yaml` on every push). Adds
the gate to the stable and beta release workflows that previously had
none.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: vdusek

.github/workflows/manual_release_beta.yaml

@@ -16,8 +16,22 @@ permissions:
   contents: read
 
 jobs:
+  wait_for_checks:
+    # Gate the release on the `Checks` workflow already succeeding on this commit (run by `on_master.yaml`).
+    name: Wait for required checks
+    runs-on: ubuntu-latest
+    permissions:
+      checks: read
+    steps:
+      - name: Wait for checks
+        uses: apify/actions/wait-for-checks@v1.2.0
+        with:
+          ref: ${{ github.sha }}
+          check-regexp: '^Checks'
+
   release_prepare:
     name: Release prepare
+    needs: [wait_for_checks]
     runs-on: ubuntu-latest
     outputs:
       version_number: ${{ steps.release_prepare.outputs.version_number }}

.github/workflows/manual_release_stable.yaml

@@ -26,17 +26,22 @@ concurrency:
   cancel-in-progress: false
 
 jobs:
-  code_checks:
-    name: Code checks
-    uses: ./.github/workflows/_check_code.yaml
-
-  tests:
-    name: Tests
-    uses: ./.github/workflows/_tests.yaml
+  wait_for_checks:
+    # Gate the release on the `Checks` workflow already succeeding on this commit (run by `on_master.yaml`).
+    name: Wait for required checks
+    runs-on: ubuntu-latest
+    permissions:
+      checks: read
+    steps:
+      - name: Wait for checks
+        uses: apify/actions/wait-for-checks@v1.2.0
+        with:
+          ref: ${{ github.sha }}
+          check-regexp: '^Checks'
 
   release_prepare:
     name: Release prepare
-    needs: [code_checks, tests]
+    needs: [wait_for_checks]
     runs-on: ubuntu-latest
     outputs:
       version_number: ${{ steps.release_prepare.outputs.version_number }}