Update ci.yml with ppc64le arch support (#3500)

Signed-off-by: Idan Adar <iadar@il.ibm.com>

.github/workflows/ci.yml

@@ -145,18 +145,18 @@ jobs:
         include:
         - dockerfile: "Dockerfile"
           build-args: "CGO_ENABLED=0"
-          build-arch: "amd64 arm64 s390x"
-          build-platform: "linux/amd64,linux/arm64,linux/s390x"
+          build-arch: "amd64 arm64 s390x ppc64le"
+          build-platform: "linux/amd64,linux/arm64,linux/s390x,linux/ppc64le"
           tag-suffix: "" # distroless
         - dockerfile: "Dockerfile.ubi"
           build-args: "CGO_ENABLED=0"
-          build-arch: "amd64 arm64"
-          build-platform: "linux/amd64,linux/arm64"
+          build-arch: "amd64 arm64 ppc64le"
+          build-platform: "linux/amd64,linux/arm64,linux/ppc64le"
           tag-suffix: "-ubi"
         - dockerfile: "Dockerfile.ubi"
           build-args: "CGO_ENABLED=0 GOEXPERIMENT=boringcrypto"
-          build-arch: "amd64"
-          build-platform: "linux/amd64"
+          build-arch: "amd64 ppc64le"
+          build-platform: "linux/amd64,linux/ppc64le"
           tag-suffix: "-ubi-boringssl"
     with:
       dockerfile: ${{ matrix.dockerfile }}