Bump mcp from 0.15.0 to 0.16.0

Bumps [mcp](https://github.com/modelcontextprotocol/ruby-sdk) from 0.15.0 to 0.16.0.
- [Release notes](https://github.com/modelcontextprotocol/ruby-sdk/releases)
- [Changelog](https://github.com/modelcontextprotocol/ruby-sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/modelcontextprotocol/ruby-sdk/compare/v0.15.0...v0.16.0)

---
updated-dependencies:
- dependency-name: mcp
  dependency-version: 0.16.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile

@@ -162,7 +162,7 @@ gem "ttfunk", "~> 1.7.0" # remove after https://github.com/prawnpdf/prawn/issues
 # prawn implicitly depends on matrix gem no longer in ruby core with 3.1
 gem "matrix", "~> 0.4.3"
 
-gem "mcp", "~> 0.15.0"
+gem "mcp", "~> 0.16.0"
 
 gem "meta-tags", "~> 2.23.0"
 

Gemfile.lock

@@ -829,7 +829,7 @@ GEM
     marcel (1.0.4)
     markly (0.16.0)
     matrix (0.4.3)
-    mcp (0.15.0)
+    mcp (0.16.0)
       json-schema (>= 4.1)
     messagebird-rest (5.0.0)
       jwt (< 4)
@@ -1656,7 +1656,7 @@ DEPENDENCIES
   mail (= 2.9.0)
   markly (~> 0.15)
   matrix (~> 0.4.3)
-  mcp (~> 0.15.0)
+  mcp (~> 0.16.0)
   md_to_pdf!
   meta-tags (~> 2.23.0)
   mini_magick (~> 5.3.0)
@@ -2014,7 +2014,7 @@ CHECKSUMS
   marcel (1.0.4) sha256=0d5649feb64b8f19f3d3468b96c680bae9746335d02194270287868a661516a4
   markly (0.16.0) sha256=6f70d79e385b1efc9e171f74c81628826259039fe6c778e03c3924c71dac5511
   matrix (0.4.3) sha256=a0d5ab7ddcc1973ff690ab361b67f359acbb16958d1dc072b8b956a286564c5b
-  mcp (0.15.0) sha256=64e26fee4ab5a55aba8b166b516a87f663647608a9e11083bb57cb9c74a82def
+  mcp (0.16.0) sha256=d8ff1a78826945f952eccf803fae1c086e54e91dac7b876038467f5fb1198617
   md_to_pdf (0.2.6)
   messagebird-rest (5.0.0) sha256=da4cc1efba3d5e4aa021fad07426c2cb6b326ce5670da5104bb8f6056a39d59c
   meta-tags (2.23.0) sha256=ffe78b5bee398de4ff5ac3316f5a786049538a651643b8476def06c3acc762c1