Refactor CI workflows (#37487)

1. only trigger docker-dryrun arm64&riscv64 when dockerfile changes
2. de-duplicate "contents: read" permission for most workflows
3. merge various "lint-*" jobs into one job
4. add missing lint targets to the "lint" (all) target

.github/workflows/cache-seeder.yml

@@ -27,11 +27,12 @@ concurrency:
   group: cache-seeder
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   gobuild:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6.4.0
@@ -49,8 +50,6 @@ jobs:
 
   lint:
     runs-on: ubuntu-latest
-    permissions:
-      contents: read
     strategy:
       fail-fast: false
       matrix: