Switch to buildah for the foreign document test.

BuildKit is having issues with caching which is causing problems with long builds like compiling emacs from source.

.webhook_bridge/pipeline-foreign-document-test.yaml

@@ -103,35 +103,41 @@ spec:
             - name: url
               value: https://code.fizz.buzz/talexander/personal_tekton_catalog.git
             - name: revision
-              value: dda7b690195b43e8b9859d1caf5dcbf48588ade1
+              value: f909b6670474346e37a57a2d23131860b6a1a635
             - name: pathInRepo
-              value: task/buildkit-rootless-daemonless/0.1/buildkit-rootless-daemonless.yaml
+              value: task/buildah-rootless-daemonless/0.1/buildah-rootless-daemonless.yaml
         params:
           - name: OUTPUT
             value: >-
-              type=image,"name=$(params.image-name):latest,$(params.image-name):$(tasks.fetch-repository.results.commit)",push=true,compression=zstd,compression-level=22,oci-mediatypes=true
+              $(params.image-name):$(tasks.fetch-repository.results.commit)
           - name: CONTEXT
             value: $(params.path-to-image-context)
           - name: DOCKERFILE
             value: $(params.path-to-dockerfile)
           - name: EXTRA_ARGS
             value:
-              - "--opt"
-              - "target=$(params.target-name)"
-              - --import-cache
-              - "type=registry,ref=$(params.image-name):buildcache"
-              - --export-cache
-              - "type=registry,ref=$(params.image-name):buildcache,mode=max,compression=zstd,compression-level=22,rewrite-timestamp=true,image-manifest=true,oci-mediatypes=true"
-              - --opt
-              - build-arg:SOURCE_DATE_EPOCH=$(tasks.get-git-commit-time.results.unix-time)
-          - name: BUILDKITD_TOML
+              - "--target"
+              - "$(params.target-name)"
+              - --cache-from
+              - "$(params.image-name)-buildcache"
+              - --cache-to
+              - "$(params.image-name)-buildcache"
+              # - --opt
+              # - build-arg:SOURCE_DATE_EPOCH=$(tasks.get-git-commit-time.results.unix-time)
+          - name: REGISTRIES_CONF
             value: |
-              debug = true
-              [registry."docker.io"]
-                mirrors = ["dockerhub.dockerhub.svc.cluster.local"]
-              [registry."dockerhub.dockerhub.svc.cluster.local"]
-                http = true
-                insecure = true
+              unqualified-search-registries = ["docker.io"]
+
+              [[registry]]
+              location = "dockerhub.dockerhub.svc.cluster.local"
+              insecure = true
+
+              [[registry]]
+              location = "docker.io"
+
+              [[registry.mirror]]
+              location = "dockerhub.dockerhub.svc.cluster.local" # Replace with your mirror URL
+              insecure = true
         workspaces:
           - name: source
             workspace: git-source
@@ -305,4 +311,4 @@ spec:
     - name: path-to-image-context
       value: docker/organic_test/
     - name: path-to-dockerfile
-      value: docker/organic_test/
+      value: docker/organic_test/Dockerfile