dev: Update module github.com/google/go-github/v86 to v88

Author: mm-renovate-bot[bot]

go.mod

@@ -7,7 +7,7 @@ toolchain go1.26.4
 require (
 	github.com/bmatcuk/doublestar/v4 v4.10.0
 	github.com/boyter/gocodewalker v1.5.1
-	github.com/google/go-github/v86 v86.0.0
+	github.com/google/go-github/v88 v88.0.0
 	github.com/pelletier/go-toml/v2 v2.3.1
 	github.com/sourcegraph/go-diff v0.8.0
 	github.com/urfave/cli/v3 v3.9.0