Updates github.com/go-git/go-git to v5.13.1 (#37)

Addresses [CWE-88](https://cwe.mitre.org/data/definitions/88.html)

Author: gdavison

go.mod

@@ -1,13 +1,46 @@
 module github.com/hashicorp/go-changelog
 
-go 1.16
+go 1.21
+
+toolchain go1.22.5
 
 require (
-	github.com/go-git/go-billy/v5 v5.5.0
-	github.com/go-git/go-git/v5 v5.11.0
+	github.com/go-git/go-billy/v5 v5.6.1
+	github.com/go-git/go-git/v5 v5.13.1
 	github.com/google/go-github v17.0.0+incompatible
-	github.com/google/go-querystring v1.0.0 // indirect
 	github.com/manifoldco/promptui v0.8.0
 	golang.org/x/oauth2 v0.0.0-20200107190931-bf48bf16ab8d
-	golang.org/x/sync v0.3.0
+	golang.org/x/sync v0.10.0
+)
+
+require (
+	dario.cat/mergo v1.0.0 // indirect
+	github.com/Microsoft/go-winio v0.6.1 // indirect
+	github.com/ProtonMail/go-crypto v1.1.3 // indirect
+	github.com/chzyer/readline v1.5.1 // indirect
+	github.com/cloudflare/circl v1.3.7 // indirect
+	github.com/cyphar/filepath-securejoin v0.3.6 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
+	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
+	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/google/go-querystring v1.0.0 // indirect
+	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/juju/ansiterm v0.0.0-20180109212912-720a0952cc2a // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
+	github.com/lunixbochs/vtclean v0.0.0-20180621232353-2d01aacdc34a // indirect
+	github.com/mattn/go-colorable v0.0.9 // indirect
+	github.com/mattn/go-isatty v0.0.4 // indirect
+	github.com/pjbgf/sha1cd v0.3.0 // indirect
+	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
+	github.com/skeema/knownhosts v1.3.0 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
+	golang.org/x/crypto v0.31.0 // indirect
+	golang.org/x/mod v0.19.0 // indirect
+	golang.org/x/net v0.33.0 // indirect
+	golang.org/x/sys v0.28.0 // indirect
+	golang.org/x/tools v0.23.0 // indirect
+	google.golang.org/appengine v1.4.0 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
+	gopkg.in/warnings.v0 v0.1.2 // indirect
 )