Restrict permissions in GHA workflows (#1782)

Signed-off-by: Jean-Christophe Morin <jean_christophe_morin@hotmail.com>

.github/workflows/benchmark.yaml

@@ -8,6 +8,9 @@ on:
  pull_request:
  types: [opened, synchronize, reopened, labeled]
 
+permissions:
+ contents: read
+
 jobs:
  run_benchmark:
  name: run_benchmark

.github/workflows/copyright.yaml

@@ -10,6 +10,9 @@ on:
  - '!**.md'
  workflow_dispatch:
 
+permissions:
+ contents: read
+
 jobs:
  main:
  name: Enforce copyright notices

.github/workflows/flake8.yaml

@@ -19,6 +19,9 @@ on:
  - '!src/rez/vendor/**'
  - '!src/rez/backport/**'
 
+permissions:
+ contents: read
+
 jobs:
  lint:
  name: Run Linter

.github/workflows/installation.yaml

@@ -22,6 +22,9 @@ on:
  - '!**.md'
  workflow_dispatch:
 
+permissions:
+ contents: read
+
 jobs:
  main:
  name: ${{ matrix.os }} - ${{ matrix.python-version }} - ${{ matrix.method }}

.github/workflows/pypi.yaml

@@ -3,6 +3,9 @@ on:
  release:
  types: [released]
 
+permissions:
+ contents: read
+
 jobs:
  publish:
  name: Publish to PyPI
@@ -11,6 +14,8 @@ jobs:
  permissions:
  # IMPORTANT: this permission is mandatory for trusted publishing
  id-token: write
+ # Not sure if it's needed here since it's defined at the top level.
+ contents: read
 
  steps:
  - name: Checkout

.github/workflows/release-notice.yaml

@@ -6,6 +6,9 @@ on:
  # published should cover both 'released' and 'prereleased'
  - published
 
+permissions:
+ contents: read
+
 jobs:
  publish:
  runs-on: ubuntu-latest

.github/workflows/tests.yaml

@@ -26,6 +26,9 @@ concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true
 
+permissions:
+ contents: read
+
 jobs:
  core:
  name: Tests