ci: attempt to trigger test run only once

.github/workflows/test_suite.yml

@@ -1,14 +1,23 @@
 name: "Test Suite"
 on:
   push:
+    branches-ignore:
+      - 'dependabot/**' #avoid duplicates: only run the PR, not the push
+      - 'renovate/**' #avoid duplicates: only run the PR, not the push
+      - 'gh-pages' #github pages do not trigger all tests
+    tags-ignore:
+      - 'v*' #avoid rerun existing commit on release
   pull_request:
+    branches:
+      - 'main'
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
 jobs:
   test:
+    if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && (github.event.pull_request.head.repo.fork || startsWith(github.head_ref, 'dependabot/') || startsWith(github.head_ref, 'renovate/')))
     name: cargo test
     runs-on: ubuntu-latest
     steps:
@@ -40,6 +49,7 @@ jobs:
 
   # Check formatting with rustfmt
   formatting:
+    if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && (github.event.pull_request.head.repo.fork || startsWith(github.head_ref, 'dependabot/') || startsWith(github.head_ref, 'renovate/')))
     name: cargo fmt
     runs-on: ubuntu-latest
     steps:
@@ -52,6 +62,7 @@ jobs:
         uses: actions-rust-lang/rustfmt@v1
 
   lint:
+    if: (github.event_name != 'pull_request' && ! github.event.pull_request.head.repo.fork) || (github.event_name == 'pull_request' && (github.event.pull_request.head.repo.fork || startsWith(github.head_ref, 'dependabot/') || startsWith(github.head_ref, 'renovate/')))
     name: cargo clippy
     runs-on: ubuntu-latest
     steps: