ci: update docker/github-builder to 1.18.0

Signed-off-by: CrazyMax <1951866+crazy-max@users.noreply.github.com>

Author: crazy-max

.github/workflows/buildkit.yml

@@ -49,12 +49,13 @@ jobs:
           fields: platforms
 
   binaries:
-    uses: docker/github-builder/.github/workflows/bake.yml@58cb9f5b71b1836d6f690c1e95effdeb9b98cb8a # v1.17.0
+    uses: docker/github-builder/.github/workflows/bake.yml@4345a1cea1e4cfb65c8a5e2b1b80f9e630068827 # v1.18.0
     permissions:
       contents: read # same as global permission
       id-token: write # for signing attestation(s) with GitHub OIDC Token
     with:
       runner: ubuntu-26.04
+      buildkit-proxy-network: true
       artifact-name: buildkit-binaries
       artifact-upload: true
       cache: true
@@ -221,7 +222,7 @@ jobs:
             core.setOutput('includes', JSON.stringify(matrix));
 
   image:
-    uses: docker/github-builder/.github/workflows/bake.yml@58cb9f5b71b1836d6f690c1e95effdeb9b98cb8a # v1.17.0
+    uses: docker/github-builder/.github/workflows/bake.yml@4345a1cea1e4cfb65c8a5e2b1b80f9e630068827 # v1.18.0
     needs:
       - image-prepare
       - test
@@ -234,6 +235,7 @@ jobs:
       id-token: write # for signing attestations, cache entries and logging in to Docker Hub with GitHub OIDC
     with:
       runner: ubuntu-26.04
+      buildkit-proxy-network: true
       target: image-cross
       cache: true
       cache-scope: image

.github/workflows/frontend.yml

@@ -125,7 +125,7 @@ jobs:
             core.setOutput('includes', JSON.stringify(matrix));
 
   image:
-    uses: docker/github-builder/.github/workflows/bake.yml@58cb9f5b71b1836d6f690c1e95effdeb9b98cb8a # v1.17.0
+    uses: docker/github-builder/.github/workflows/bake.yml@4345a1cea1e4cfb65c8a5e2b1b80f9e630068827 # v1.18.0
     needs:
       - prepare
       - test
@@ -138,6 +138,7 @@ jobs:
       id-token: write # for signing attestations, cache entries and logging in to Docker Hub with GitHub OIDC
     with:
       runner: ubuntu-26.04
+      buildkit-proxy-network: true
       target: frontend-image-cross
       cache: true
       cache-scope: frontend-${{ matrix.channel }}