scripts: pin staticcheck package

The last released version of staticcheck does not yet support Go
1.21.0, so pin to the latest commit.

When a version is released that supports Go 1.21.0, we should pin to
that instead.

scripts/staticcheck.sh

@@ -18,4 +18,4 @@ packages=$(go list ./... | egrep -v ${skip})
 # may result in bugs. We also disable fucntion deprecation checks (SA1019)
 # because our policy is to update deprecated calls locally while making other
 # nearby changes, rather than to make cross-cutting changes to update them all.
-go run honnef.co/go/tools/cmd/staticcheck -checks 'all,-SA1019,-ST*' ${packages}
+go run honnef.co/go/tools/cmd/staticcheck@ad5ca31ff2216a6e1f0ac2adf427ad54173b8341 -checks 'all,-SA1019,-ST*' ${packages}