Remove unused github.com/google/go-github/v76 dependency

Only v77 is needed since all code uses v77 consistently.

Author: natagdunbar

go.mod

@@ -3,7 +3,6 @@ module github.com/github/github-mcp-server
 go 1.24.0
 
 require (
-	github.com/google/go-github/v76 v76.0.0
 	github.com/google/go-github/v77 v77.0.0
 	github.com/josephburnett/jd v1.9.2
 	github.com/mark3labs/mcp-go v0.36.0

go.sum

@@ -26,8 +26,6 @@ github.com/google/go-cmp v0.7.0 h1:wk8382ETsv4JYUZwIsn6YpYiWiBsYLSJiTsyBybVuN8=
 github.com/google/go-cmp v0.7.0/go.mod h1:pXiqmnSA92OHEEa9HXL2W4E7lf9JzCmGVUdgjX3N/iU=
 github.com/google/go-github/v71 v71.0.0 h1:Zi16OymGKZZMm8ZliffVVJ/Q9YZreDKONCr+WUd0Z30=
 github.com/google/go-github/v71 v71.0.0/go.mod h1:URZXObp2BLlMjwu0O8g4y6VBneUj2bCHgnI8FfgZ51M=
-github.com/google/go-github/v76 v76.0.0 h1:MCa9VQn+VG5GG7Y7BAkBvSRUN3o+QpaEOuZwFPJmdFA=
-github.com/google/go-github/v76 v76.0.0/go.mod h1:38+d/8pYDO4fBLYfBhXF5EKO0wA3UkXBjfmQapFsNCQ=
 github.com/google/go-github/v77 v77.0.0 h1:9DsKKbZqil5y/4Z9mNpZDQnpli6PJbqipSuuNdcbjwI=
 github.com/google/go-github/v77 v77.0.0/go.mod h1:c8VmGXRUmaZUqbctUcGEDWYnMrtzZfJhDSylEf1wfmA=
 github.com/google/go-querystring v1.1.0 h1:AnCroh3fv4ZBgVIf1Iwtovgjaw/GiKJo8M8yD/fhyJ8=