Fix minor issue from update_ghcr.sh refactoring

Signed-off-by: Dom Del Nano <ddelnano@gmail.com>

Author: ddelnano

src/stirling/testing/demo_apps/go_grpc_tls_pl/server/update_ghcr.sh

@@ -28,7 +28,8 @@ version=1.0
 IMAGES=()
 
 for go_image_digest in "${!GO_IMAGE_DIGEST_MAP[@]}"; do
-  tag="ghcr.io/pixie-io/golang_${go_image_digest//./_}_grpc_server_with_buildinfo:$version"
+  go_version=${go_image_digest%%-*}
+  tag="ghcr.io/pixie-io/golang_${go_version//./_}_grpc_server_with_buildinfo:$version"
   google_golang_grpc=${GO_IMAGE_DIGEST_MAP[$go_image_digest]}
   echo "Building and pushing image: $tag"
   docker build . --build-arg GO_IMAGE_DIGEST="${go_image_digest}" --build-arg GOOGLE_GOLANG_GRPC="${google_golang_grpc}" -t "${tag}"

src/stirling/testing/demo_apps/go_https/server/update_ghcr.sh

@@ -28,7 +28,8 @@ version=1.0
 IMAGES=()
 
 for go_image_digest in "${!GO_IMAGE_DIGEST_MAP[@]}"; do
-  tag="ghcr.io/pixie-io/golang_${go_image_digest//./_}_https_server_with_buildinfo:$version"
+  go_version=${go_image_digest%%-*}
+  tag="ghcr.io/pixie-io/golang_${go_version//./_}_https_server_with_buildinfo:$version"
   x_net_version=${GO_IMAGE_DIGEST_MAP[$go_image_digest]}
   echo "Building and pushing image: $tag"
   docker build . --build-arg GO_IMAGE_DIGEST="${go_image_digest}" --build-arg GOLANG_X_NET="${x_net_version}" -t "${tag}"