[Python] parsedeps command doesn't handle ~=

[prabhu]

https://github.com/AppThreat/atom/blob/9df44879b48639f933b10fb113878d2b71d58933/src/main/scala/io/appthreat/atom/parsedeps/PythonDependencyParser.scala#L28

Getting the below entry for this project

{
            "name": "dbt-core~=1.7,<1.8",
            "version": "",
            "versionSpecifiers": "",
            "importedSymbols": ""
        }

The fix will be similar to this commit. Add some unit tests and include the operator in the regex.