chore(deps): update module github.com/go-git/go-git/v5 to v5.19.3

Automated dependency update. All tests passed.

go.mod

@@ -6,7 +6,7 @@ require (
 	charm.land/bubbles/v2 v2.2.1
 	charm.land/lipgloss/v2 v2.0.6
 	github.com/bradleyfalzon/ghinstallation/v2 v2.19.0
-	github.com/go-git/go-git/v5 v5.19.2
+	github.com/go-git/go-git/v5 v5.19.3
 	github.com/google/go-github/v92 v92.0.0
 	github.com/shurcooL/githubv4 v0.0.0-20260209031235-2402fdf4a9ed
 	github.com/spf13/cobra v1.10.2

go.sum

@@ -58,8 +58,8 @@ github.com/go-git/go-billy/v5 v5.9.2 h1:OXFSRyz4g20upsGDJgQG9Bak1l/ZEv8GHVYB52O7
 github.com/go-git/go-billy/v5 v5.9.2/go.mod h1:ExsU+jcGwXTBOnyilvAnEM1wug1IxHr4yP2ZXsNRtV0=
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399 h1:eMje31YglSBqCdIqdhKBW8lokaMrL3uTkpGYlE2OOT4=
 github.com/go-git/go-git-fixtures/v4 v4.3.2-0.20231010084843-55a94097c399/go.mod h1:1OCfN199q1Jm3HZlxleg+Dw/mwps2Wbk9frAWm+4FII=
-github.com/go-git/go-git/v5 v5.19.2 h1:wkfn7vOlUBu8ivAWKBWisTiwJK4jYHzTF8Ndv1LyGqY=
-github.com/go-git/go-git/v5 v5.19.2/go.mod h1:QqCBE1EFN5ddFmrliLQ3/ntRCUjZU3EJuwuB/jWEHjk=
+github.com/go-git/go-git/v5 v5.19.3 h1:qHttbZ+Am7wEjdTpR1XMQ4rl42FK9SIXzZ4o9x7s6M4=
+github.com/go-git/go-git/v5 v5.19.3/go.mod h1:Ye4C8dVigkqrv9UsB4NMdSLV4yAIkLiIhW61gcOyhl4=
 github.com/golang-jwt/jwt/v4 v4.5.2 h1:YtQM7lnr8iZ+j5q71MGKkNw9Mn7AjHM68uc9g5fXeUI=
 github.com/golang-jwt/jwt/v4 v4.5.2/go.mod h1:m21LjoU+eqJr34lmDMbreY2eSTRJ1cv77w39/MY0Ch0=
 github.com/golang/groupcache v0.0.0-20241129210726-2c02b8208cf8 h1:f+oWsMOmNPc8JmEHVZIycC7hBoQxHH9pNKQORJNozsQ=