Fix permissions on Github Actions jobs (#7430)

Related: #7425

.github/workflows/infra_tests.yml

@@ -1,4 +1,8 @@
 name: Infra tests
+
+permissions:
+  contents: read
+
 on:
   pull_request:
     paths:
@@ -8,7 +12,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-
+    permissions:
+      actions: write
     steps:
       - name: Cancel previous
         uses: styfle/cancel-workflow-action@0.8.0

.github/workflows/presubmit.yml

@@ -1,5 +1,8 @@
 name: Presubmit checks
 
+permissions:
+  contents: read
+
 on:
   pull_request:
     branches:
@@ -8,7 +11,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
-
+    permissions:
+      actions: write
     steps:
       - name: Cancel previous
         uses: styfle/cancel-workflow-action@0.8.0

.github/workflows/project_tests.yml

@@ -1,5 +1,8 @@
 name: Project tests
 
+permissions:
+  contents: read
+
 on:
   pull_request:
     branches:
@@ -8,6 +11,8 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+    permissions:
+      actions: write
     strategy:
       fail-fast: false
       matrix: