Enable more revive linter rules (#30608)

Noteable additions:

- `redefines-builtin-id` forbid variable names that shadow go builtins
- `empty-lines` remove unnecessary empty lines that `gofumpt` does not
remove for some reason
- `superfluous-else` eliminate more superfluous `else` branches

Rules are also sorted alphabetically and I cleaned up various parts of
`.golangci.yml`.

models/asymkey/gpg_key_commit_verification.go

@@ -110,7 +110,6 @@ func ParseCommitWithSignature(ctx context.Context, c *git.Commit) *CommitVerific
 					Reason:         "gpg.error.no_committer_account",
 				}
 			}
-
 		}
 	}