ci: update mypy requirement from <2.0.0,>=1.15.0 to >=1.15.0,<3.0.0

Updates the requirements on [mypy](https://github.com/python/mypy) to permit the latest version.
- [Changelog](https://github.com/python/mypy/blob/master/CHANGELOG.md)
- [Commits](python/mypy@v1.15.0...v2.0.0)

---
updated-dependencies:
- dependency-name: mypy
  dependency-version: 2.0.0
  dependency-type: direct:development
...

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

Author: dependabot[bot]

pyproject.toml

@@ -90,7 +90,7 @@ dev = [
     "commitizen>=4.4.0,<5.0.0",
     "hatch>=1.0.0,<2.0.0",
     "moto>=5.1.0,<6.0.0",
-    "mypy>=1.15.0,<2.0.0",
+    "mypy>=1.15.0,<3.0.0",
     "pre-commit>=3.2.0,<4.7.0",
     "pytest>=9.0.0,<10.0.0",
     "pytest-cov>=7.0.0,<8.0.0",
@@ -119,7 +119,7 @@ source = "vcs"  # Use git tags for versioning
 installer = "uv"
 features = ["all"]
 dependencies = [
-  "mypy>=1.15.0,<2.0.0",
+  "mypy>=1.15.0,<3.0.0",
   "ruff>=0.13.0,<0.15.0",
   # Include required package dependencies for mypy
   "strands-agents @ {root:uri}",