chore(deps): update msal requirement from ==1.27.0 to ==1.28.0

Updates the requirements on [msal](https://github.com/AzureAD/microsoft-authentication-library-for-python) to permit the latest version.
- [Release notes](https://github.com/AzureAD/microsoft-authentication-library-for-python/releases)
- [Commits](AzureAD/microsoft-authentication-library-for-python@1.27.0...1.28.0)

---
updated-dependencies:
- dependency-name: msal
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

pyproject.toml

@@ -28,7 +28,7 @@ importlib-resources = { version = "==6.3.*", python = "<3.9" }
 singer-sdk = { version="~=0.36.0" }
 fs-s3fs = { version = "~=1.1.1", optional = true }
 requests = "~=2.31.0"
-msal = "==1.27.0"
+msal = "==1.28.0"
 
 [tool.poetry.group.dev.dependencies]
 pytest = ">=7.4.0"