fix: Use a == requirement on tankerci, it is not backwards compat

And that means we can't rebuild old versions with a new tankerci

Author: tux3

pyproject.toml

@@ -24,7 +24,7 @@ typing_extensions = "^3.7.4"
 
 [tool.poetry.dev-dependencies]
 # CI/CD
-tankerci = { version = ">= 2023.1.4627", source = "gitlab" }
+tankerci = { version = "== 2023.5.4760 ", source = "gitlab" }
 twine = "^3.2.0"
 build = "^0.10.0"