chore(deps): bump singer-sdk in the runtime-dependencies group

Bumps the runtime-dependencies group with 1 update: [singer-sdk](https://github.com/meltano/sdk).


Updates `singer-sdk` from 0.39.0 to 0.39.1
- [Release notes](https://github.com/meltano/sdk/releases)
- [Changelog](https://github.com/meltano/sdk/blob/main/CHANGELOG.md)
- [Commits](meltano/sdk@v0.39.0...v0.39.1)

---
updated-dependencies:
- dependency-name: singer-sdk
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: runtime-dependencies
...

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

pyproject.toml

@@ -24,7 +24,7 @@ packages = [
 
 [tool.poetry.dependencies]
 python = ">=3.8,<3.13"
-singer-sdk = { version="~=0.39.0" }
+singer-sdk = { version="~=0.39.1" }
 fs-s3fs = { version = "~=1.1.1", optional = true }
 requests = "~=2.32.3"
 pyiceberg = "^0.7.0"
@@ -34,7 +34,7 @@ pydantic = "2.6.1"
 
 [tool.poetry.dev-dependencies]
 pytest = ">=8"
-singer-sdk = { version="~=0.39.0", extras = ["testing"] }
+singer-sdk = { version="~=0.39.1", extras = ["testing"] }
 
 [tool.poetry.extras]
 s3 = ["fs-s3fs"]