fix: specify valid go_package option (#293)

* fix: specify valid go_package option

The explicitly specified package name is invalid since it identical
to one of the keywords in Go (e.g., "package" or "type").
Remove explicitly specifying the name, which will cause protoc-gen-go
to derive the package name from the last path segment.
If the name is not valid, it will automatically sanitize it
to produce a valid package identifier (e.g., "_package" or "_type").

Committer: @dsnet
PiperOrigin-RevId: 370589666

Source-Link: googleapis/googleapis@e7d77d6

Source-Link: googleapis/googleapis-gen@b6ec2fd

* 🦉 Updates from OwlBot

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

packages/google-devtools-containeranalysis/protos/google/devtools/containeranalysis/v1beta1/package/package.proto

@@ -16,7 +16,7 @@ syntax = "proto3";
 
 package grafeas.v1beta1.package;
 
-option go_package = "google.golang.org/genproto/googleapis/devtools/containeranalysis/v1beta1/package;package";
+option go_package = "google.golang.org/genproto/googleapis/devtools/containeranalysis/v1beta1/package";
 option java_multiple_files = true;
 option java_package = "io.grafeas.v1beta1.pkg";
 option objc_class_prefix = "GRA";