ci: switch to manual image builds for now

Author: dervoeti

.github/workflows/build_harbor_garbage_collector.yml

@@ -1,9 +1,7 @@
 name: Build Harbor garbage collector docker image
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 permissions:
   id-token: write

.github/workflows/build_harbor_sbom_browser.yml

@@ -1,9 +1,7 @@
 name: Build SBOM browser docker image
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 permissions:
   id-token: write

.github/workflows/build_matterbridge.yml

@@ -1,9 +1,7 @@
 name: Build Matterbridge
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 permissions:
   id-token: write

.github/workflows/build_nexus_garbage_collector.yml

@@ -1,9 +1,7 @@
 name: Build Nexus garbage collector docker image
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 permissions:
   id-token: write

.github/workflows/build_oci_monitor.yml

@@ -1,9 +1,7 @@
 name: Build OCI monitor docker image
 
 on:
-  push:
-    branches:
-      - main
+  workflow_dispatch:
 
 permissions:
   id-token: write