fix(deps): update module github.com/hashicorp/go-getter to v1.7.8

Author: renovate[bot]

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/fluxcd/source-controller/api v1.2.5
 	github.com/google/go-cmp v0.6.0
 	github.com/google/uuid v1.4.0
-	github.com/hashicorp/go-getter v1.7.5
+	github.com/hashicorp/go-getter v1.7.8
 	github.com/pkg/errors v0.9.1
 	github.com/spf13/afero v1.11.0
 	go.uber.org/zap v1.26.0