chore(deps): Bump singer-sdk from 0.30.0 to 0.31.0 (#159)

Author: dependabot[bot]

poetry.lock

@@ -18,7 +18,7 @@ documentation = "https://github.com/MeltanoLabs/meltano-map-transform#readme"
 
 [tool.poetry.dependencies]
 python = "<3.12,>=3.7.1"
-singer-sdk = "0.30.0"
+singer-sdk = "~=0.31.0"
 
 [tool.poetry.dev-dependencies]
 pytest = "^7.4.0"