chore(deps): update dependency go to v1.26.0 (#314)

Co-authored-by: self-hosted-renovatebot[bot] <121058242+self-hosted-renovatebot[bot]@users.noreply.github.com>

Author: self-hosted-renovatebot[bot]

go.mod

@@ -2,7 +2,7 @@ module github.com/cresta/gitdb
 
 go 1.24.0
 
-toolchain go1.25.7
+toolchain go1.26.0
 
 require (
 	github.com/auth0/go-jwt-middleware v0.0.0-20200810150920-a32d7af194d1