Konflux multi-arch fix (#219)

Konflux multi-arch fix

Signed-off-by: Roke Jung <[email protected]>

Author: rokej

.tekton/cluster-api-provider-agent-mce-29-pull-request.yaml

@@ -30,6 +30,9 @@ spec:
   - name: build-platforms
     value:
     - linux/x86_64
+    - linux/ppc64le
+    - linux/s390x
+    - linux/arm64
   - name: dockerfile
     value: Dockerfile.rhtap
   - name: path-context

Dockerfile.rhtap

@@ -4,7 +4,7 @@ FROM brew.registry.redhat.io/rh-osbs/openshift-golang-builder:rhel_8_1.21 as bui
 WORKDIR /workspace
 COPY . .
 # Build
-RUN CGO_ENABLED=1 GOOS=linux GOARCH=amd64 go build -a -o manager main.go
+RUN CGO_ENABLED=1 go build -a -o manager main.go
 
 FROM registry.redhat.io/rhel9-2-els/rhel:9.2
 LABEL \