Add: Add semver as dependency for semantic versioning support

pontos will support the semantic versioning scheme besides PEP 440 in
future.

Author: bjoernricks

poetry.lock

@@ -43,6 +43,7 @@ httpx = {extras = ["http2"], version = "^0.23.0"}
 rich = ">=12.4.4"
 typing-extensions = { version = "^4.4.0", python = "<3.8" }
 python-dateutil = "^2.8.2"
+semver = "^2.13.0"
 
 [tool.poetry.dev-dependencies]
 autohooks = ">=22.7.0"