ci: move community actions to self-hosted runners

.github/workflows/release.yml

@@ -22,7 +22,7 @@ env:
 
 jobs:
   build-release-assets:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, linux, x64]
 
     steps:
       - name: Checkout
@@ -33,15 +33,10 @@ jobs:
         with:
           toolchain: 1.85.0
 
-      - name: Cache cargo artifacts
-        uses: Swatinem/rust-cache@v2
-
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
           node-version: 22
-          cache: npm
-          cache-dependency-path: apps/ui/package-lock.json
 
       - name: Build release binaries
         run: cargo build --release -p admin-api -p mcp-server
@@ -86,7 +81,7 @@ jobs:
             dist/crank-community-${{ env.IMAGE_TAG }}-sbom.spdx.json
 
   publish-images:
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, linux, x64]
     strategy:
       fail-fast: false
       matrix:
@@ -124,14 +119,12 @@ jobs:
           tags: |
             ${{ matrix.image }}:${{ env.IMAGE_TAG }}
             ${{ matrix.image }}:latest
-          cache-from: type=gha,scope=release-${{ matrix.name }}
-          cache-to: type=gha,mode=max,scope=release-${{ matrix.name }}
 
   github-release:
     needs:
       - build-release-assets
       - publish-images
-    runs-on: ubuntu-latest
+    runs-on: [self-hosted, linux, x64]
 
     steps:
       - name: Download release artifacts