chore(main): release github.com/googleapis/mcp-toolbox-sdk-go/core 0.6.1 (#174)

* chore(main): release github.com/googleapis/mcp-toolbox-sdk-go/core 0.6.1

* Update CHANGELOG for version 0.6.1 release

Updated changelog for version 0.6.1 release and corrected version comparison links.

---------

Co-authored-by: release-please[bot] <55107282+release-please[bot]@users.noreply.github.com>
Co-authored-by: dishaprakash <57954147+dishaprakash@users.noreply.github.com>

Author: release-please[bot]

.release-please-manifest.json

@@ -1,5 +1,5 @@
 {
-    "core": "0.6.0",
+    "core": "0.6.1",
     "tbadk": "0.5.1",
     "tbgenkit": "0.5.1"
 }

core/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Changelog
 
-## [0.6.0](https://github.com/googleapis/mcp-toolbox-sdk-go/compare/github.com/googleapis/mcp-toolbox-sdk-go/core-v0.5.1...github.com/googleapis/mcp-toolbox-sdk-go/core-v0.6.0) (2026-02-12)
+## [0.6.1](https://github.com/googleapis/mcp-toolbox-sdk-go/compare/github.com/googleapis/mcp-toolbox-sdk-go/core-v0.5.1...github.com/googleapis/mcp-toolbox-sdk-go/core-v0.6.1) (2026-02-12)
 
 > [!IMPORTANT]
 > **Breaking Change Notice**: As of version `0.6.0`, this repository has transitioned to a multi-module structure.

core/transport/mcp/version.go

@@ -16,4 +16,4 @@ package mcp
 
 // SDKVersion is the current version of the library.
 // This is updated automatically by release-please.
-const SDKVersion = "0.6.0" // x-release-please-version
+const SDKVersion = "0.6.1" // x-release-please-version