[wip] disable use of self-hosted runners

.github/workflows/build-binaries.yml

@@ -19,7 +19,7 @@ on:
 
 jobs:
   build-binaries:
-    runs-on: [arc-runner-set]
+    runs-on: [ubuntu-22.04]
     steps:
       - name: Checkout
         uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4.1.1
@@ -29,8 +29,7 @@ jobs:
       - name: Setup bazel
         uses: ./.github/actions/setup_bazel_nix
         with:
-          useCache: "rbe"
-          rbePlatform: "ubuntu-22.04"
+          useCache: "true"
           buildBuddyApiKey: ${{ secrets.BUILDBUDDY_ORG_API_KEY }}
 
       - name: Build all

.github/workflows/test-tidy.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   tidycheck:
     name: tidy, check and generate
-    runs-on: [arc-runner-set]
+    runs-on: [ubuntu-22.04]
     permissions:
       id-token: write
       contents: read
@@ -32,8 +32,7 @@ jobs:
       - name: Setup Bazel
         uses: ./.github/actions/setup_bazel_nix
         with:
-          useCache: "rbe"
-          rbePlatform: "ubuntu-22.04"
+          useCache: "true"
           buildBuddyApiKey: ${{ secrets.BUILDBUDDY_ORG_API_KEY }}
 
       - name: Assume AWS role to upload Bazel dependencies to S3

.github/workflows/test-unittest.yml

@@ -23,7 +23,7 @@ on:
 
 jobs:
   test-unittest:
-    runs-on: [arc-runner-set]
+    runs-on: [ubuntu-22.04]
     permissions:
       id-token: write
       contents: read
@@ -38,17 +38,9 @@ jobs:
       - name: Setup bazel
         uses: ./.github/actions/setup_bazel_nix
         with:
-          useCache: "rbe"
-          rbePlatform: "ubuntu-22.04"
+          useCache: "true"
           buildBuddyApiKey: ${{ secrets.BUILDBUDDY_ORG_API_KEY }}
 
-      - name: Install AWS cli
-        run: |
-          curl -fsSL "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
-          unzip awscliv2.zip
-          sudo ./aws/install
-          rm -rf awscliv2.zip aws
-
       - name: Login to AWS (IAM role)
         uses: aws-actions/configure-aws-credentials@010d0da01d0b5a38af31e9c3470dbfdabdecca3a # v4.0.1
         with:

bazel/ci/BUILD.bazel

@@ -550,7 +550,7 @@ multirun(
             ":actionlint",
         ],
     }),
-    jobs = 0,  # execute concurrently
+    jobs = 1,  # execute sequentially
     stop_on_error = False,
     visibility = ["//visibility:public"],
 )