build(deps): update go module directive to v1.26.8 (#235)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

go.mod

@@ -1,6 +1,6 @@
 module github-bot
 
-go 1.26.7
+go 1.26.8
 
 tool golang.org/x/vuln/cmd/govulncheck