cmd/gopherbot: label gopls issues automatically
cmd/gopherbot: label gopls issues automatically

This change configures gopherbot to automatically label issues with
"gopls" or "lsp" in the title as "gopls".

Change-Id: I1b6639558551a29f22375732592cb13819748115
Reviewed-on: https://go-review.googlesource.com/c/build/+/172097
Run-TryBot: Rebecca Stambler <d7cf11e5f299d88ea8348366a9fc4f7c335c3afa@golang.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>

golang/build,golang/build,golang/build,golang/build