chore: fix runs-on name

.github/workflows/build-and-push-docker-base-image.yml

@@ -13,7 +13,7 @@ env:
 
 jobs:
   build-and-push-docker-base-image:
-    runs-on: [self-hosted]
+    runs-on: self-hosted
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/build-and-push-docker-image-amd64-dev.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build-and-push-docker-image-dev-amd64:
-    runs-on: [self-hosted]
+    runs-on: self-hosted
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/build-and-push-docker-image-arm-dev.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build-and-push-docker-image-dev-arm:
-    runs-on: [self-hosted]
+    runs-on: self-hosted
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/build-and-push-docker-image.yml

@@ -6,7 +6,7 @@ on:
 
 jobs:
   build-and-push-docker-image:
-    runs-on: [self-hosted]
+    runs-on: self-hosted
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/helm-chart-release.yml

@@ -13,7 +13,7 @@ jobs:
     # see: https://docs.github.com/en/actions/security-guides/automatic-token-authentication#modifying-the-permissions-for-the-github_token
     permissions:
       contents: write
-    runs-on: [self-hosted]
+    runs-on: self-hosted
     steps:
       - name: Checkout
         uses: actions/checkout@v4