Update the htcondor bindings

[transientlunatic]

This MR updates the bindings between htcondor and heron to allow heron to submit jobs on clusters using the htcondor2 python interface.

[Copilot]

Pull request overview

This PR updates the HTCondor bindings to support the htcondor2 Python interface with backward compatibility for the legacy htcondor module. The implementation uses a try-except block to attempt importing htcondor2 first, falling back to the original htcondor module if htcondor2 is not available.

Changes:

• Added import fallback mechanism for htcondor2/htcondor and classad2/classad modules with warning suppression
• Added environment/ directory to .gitignore for virtual environment exclusion

Reviewed changes

Copilot reviewed 1 out of 2 changed files in this pull request and generated 4 comments.

File	Description
heron/asimov/init.py	Implements backward-compatible import logic for htcondor2/htcondor with fallback mechanism
.gitignore	Adds environment/ directory to version control exclusions

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[Copilot]

The classad module is imported but never used in this file. Consider removing this import unless it's needed for future functionality or by code that imports from this module.

Suggested change

	import classad2 as classad # NoQA
	except ImportError:
	warnings.filterwarnings("ignore", module="htcondor")
	import htcondor # NoQA
	import classad # NoQA
	except ImportError:
	warnings.filterwarnings("ignore", module="htcondor")
	import htcondor # NoQA

[Copilot]

Variable posterior is not used.