Use public gh-runner

Switch from `self-hosted` to `ubuntu-latest`.

.github/workflows/check-codegen.yml

@@ -8,7 +8,7 @@ on:
 
 jobs:
   check-codegen:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3

.github/workflows/golangci-lint.yml

@@ -8,7 +8,7 @@ on:
 jobs:
   golangci:
     name: lint
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3

.github/workflows/kustomize-validation.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   kustomize-validation:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: Check out code
         uses: actions/checkout@v3

.github/workflows/publish-docker.yml

@@ -29,7 +29,7 @@ jobs:
           - name: onmetal-api-apiserver
             target: apiserver
     if: ${{ github.event.label.name == 'ok-to-image' }} || ${{ github.event.label.name == 'ok-to-🐳' }} || ${{ github.ref == 'refs/heads/main' }}
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
       - uses: docker/metadata-action@v3

.github/workflows/release-drafter.yml

@@ -9,7 +9,7 @@ on:
 
 jobs:
   update_release_draft:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       # Drafts your next Release notes as Pull Requests are merged into "main"
       - uses: release-drafter/release-drafter@v5

.github/workflows/size-label.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   size-label:
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - name: size-label
         uses: pascalgn/[email protected]

.github/workflows/test.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   checks:
     name: run
-    runs-on: self-hosted
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v3
         with: