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 0.44.0 to 0.44.3
- [Release notes](https://github.com/meltano/sdk/releases)
- [Changelog](https://github.com/meltano/sdk/blob/main/CHANGELOG.md)
- [Commits](meltano/sdk@v0.44.0...v0.44.3)

---
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

@@ -25,13 +25,13 @@ packages = [
 [tool.poetry.dependencies]
 python = ">=3.9"
 backports-datetime-fromisoformat = {version = "==2.0.3", python = "<3.11"}
-singer-sdk = { version="~=0.44.0", extras = [] }
+singer-sdk = { version="~=0.44.3", extras = [] }
 fs-s3fs = { version = "~=1.1.1", optional = true }
 xmltodict = "~=0.14.2"
 
 [tool.poetry.group.dev.dependencies]
 pytest = ">=8"
-singer-sdk = { version="~=0.44.0", extras = ["testing"] }
+singer-sdk = { version="~=0.44.3", extras = ["testing"] }
 
 [tool.poetry.extras]
 s3 = ["fs-s3fs"]