GitHub Workflows security hardening (#1193)

* build: harden validate.yml permissions

Signed-off-by: Alex <[email protected]>

* Update validate.yml

Signed-off-by: Alex <[email protected]>
Co-authored-by: Sebastian Silbermann <[email protected]>

Author: sashashura

.github/workflows/validate.yml

@@ -12,8 +12,14 @@ on:
       - 'alpha'
       - '!all-contributors/**'
   pull_request: {}
+
+permissions: {}
+
 jobs:
   main:
+    permissions:
+      actions: write #  to cancel/stop running workflows (styfle/cancel-workflow-action)
+      contents: read #  to fetch code (actions/checkout)
     # ignore all-contributors PRs
     if: ${{ !contains(github.head_ref, 'all-contributors') }}
     strategy:
@@ -56,6 +62,10 @@ jobs:
           flags: node-${{ matrix.node }}
 
   release:
+    permissions:
+      actions: write #  to cancel/stop running workflows (styfle/cancel-workflow-action)
+      contents: write #  to create release tags (cycjimmy/semantic-release-action)
+
     needs: main
     runs-on: ubuntu-latest
     if: