chore(deps): update module github.com/cenkalti/backoff/v4 to v5

Signed-off-by: red-hat-konflux <126015336+red-hat-konflux[bot]@users.noreply.github.com>

Author: red-hat-konflux[bot]

go.mod

@@ -1,6 +1,8 @@
 module github.com/app-sre/terraform-repo-executor
 
-go 1.21
+go 1.23
+
+toolchain go1.24.4
 
 require (
 	github.com/go-git/go-git/v5 v5.13.2