fix: run go mod tidy to remove stale go-sdk v1.5.0 entries from go.sum

Agent-Logs-Url: https://github.com/github/github-mcp-server/sessions/abd7edc7-51a3-4097-94cb-4fc4de980953

Co-authored-by: IrynaKulakova <52420926+IrynaKulakova@users.noreply.github.com>

Author: Copilot

go.sum

@@ -39,8 +39,6 @@ github.com/lithammer/fuzzysearch v1.1.8 h1:/HIuJnjHuXS8bKaiTMeeDlW2/AyIWk2brx1V8
 github.com/lithammer/fuzzysearch v1.1.8/go.mod h1:IdqeyBClc3FFqSzYq/MXESsS4S0FsZ5ajtkr5xPLts4=
 github.com/microcosm-cc/bluemonday v1.0.27 h1:MpEUotklkwCSLeH+Qdx1VJgNqLlpY2KXwXFM08ygZfk=
 github.com/microcosm-cc/bluemonday v1.0.27/go.mod h1:jFi9vgW+H7c3V0lb6nR74Ib/DIB5OBs92Dimizgw2cA=
-github.com/modelcontextprotocol/go-sdk v1.5.0 h1:CHU0FIX9kpueNkxuYtfYQn1Z0slhFzBZuq+x6IiblIU=
-github.com/modelcontextprotocol/go-sdk v1.5.0/go.mod h1:gggDIhoemhWs3BGkGwd1umzEXCEMMvAnhTrnbXJKKKA=
 github.com/modelcontextprotocol/go-sdk v1.5.1-0.20260403154220-27f29c1cef3b h1:mB8zdpP8SX1TEqnEZpV2hHD30EQXivsZl4AP9hgm7F8=
 github.com/modelcontextprotocol/go-sdk v1.5.1-0.20260403154220-27f29c1cef3b/go.mod h1:gggDIhoemhWs3BGkGwd1umzEXCEMMvAnhTrnbXJKKKA=
 github.com/muesli/cache2go v0.0.0-20221011235721-518229cd8021 h1:31Y+Yu373ymebRdJN1cWLLooHH8xAr0MhKTEJGV/87g=