Summary:
go binaries with -c opt have their debug symbols stripped by the go_binary rules.

One way to prevent this is to pass the --strip=never flag.

Right now this applies globally, so C++ fastbuild targets are affected too.

When we upgrade io_bazel_rules_go, there's a better way to do this.

If someone knows a better way in the meantime, I'm all ears.

Test Plan: Jenkins

Reviewers: zasgar, yzhao, #engineering

Reviewed By: zasgar, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D4853

GitOrigin-RevId: 2eaa8b97a82421087b39a1baca13346d7d627014