Upgrade Go version to 1.25.4 (#6)

* Upgrade Go version to 1.25.4

Update go.mod and GitHub Actions workflow to use Go 1.25.4 across all jobs and matrix configurations.

* Remove Go 1.24 support from CI workflow

Remove matrix strategy and test only against Go 1.25.4. This simplifies the workflow since we're now only supporting a single Go version.

* Use matrix strategy with Go 1.25 only

Keep the matrix strategy but configure it to test against only Go 1.25, removing Go 1.24 support.

---------

Co-authored-by: Claude <noreply@anthropic.com>

Author: nsega

.github/workflows/build-and-test.yml

@@ -12,7 +12,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        go-version: ['1.24', '1.25']
+        go-version: ['1.25']
 
     steps:
     - name: Check out code
@@ -47,7 +47,6 @@ jobs:
       run: go test -v -race -coverprofile=coverage.out -covermode=atomic ./...
 
     - name: Upload coverage to Codecov
-      if: matrix.go-version == '1.25'
       uses: codecov/codecov-action@v4
       with:
         files: ./coverage.out
@@ -58,7 +57,6 @@ jobs:
       run: go vet ./...
 
     - name: Run staticcheck
-      if: matrix.go-version == '1.25'
       run: |
         go install honnef.co/go/tools/cmd/staticcheck@latest
         staticcheck ./...

go.mod

@@ -1,6 +1,6 @@
 module github.com/nsega/mcp-obsidian
 
-go 1.24.7
+go 1.25.4
 
 require github.com/modelcontextprotocol/go-sdk v1.1.0