Bump github.com/go-git/go-git/v5 from 5.1.0 to 5.17.1 in /go/ql/test/library-tests/semmle/go/frameworks/Fasthttp in the go_modules group across 1 directory

Bump github.com/go-git/go-git/v5 from 5.1.0 to 5.17.1 in /go/ql/test/library-tests/semmle/go/frameworks/Fasthttp in the go_modules group across 1 directory #6331