fix: CondaEnvFileSpec lose the rule object to create new IOFile object

[ddesvillechabrol]

Description

Hello !
This PR is a bugfix for the bug that broke the tests for snakemake-wrappers like this one snakemake/snakemake-wrappers#449.
The implementation with CondaEnvFileSpec seems to lose the rule object needed to create new IOFile object.
I am not sure but my bugfix may lead to memory leak.
Another solution is to pass the rule object when the apply_wildcards is called.
Cheers
Dimitri

QC

• The PR contains a test case for the changes or the changes are already covered by an existing test case.
• The documentation (docs/) is updated to reflect the changes or this is not necessary (e.g. if the change does neither modify the language nor the behavior or functionalities of Snakemake).

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
0.0% Duplication

[johanneskoester]

Thanks a lot, also for pointing me to the issue! Closing in favor of a slightly different fix (as you already suggest) in PR #1377.