Add support to avoid Checksum generation entirely

[tommycbird]

Describe the bug

When running in a FIPS-enabled environment, deploy always calls Checksums.generate, which tries to compute MD5 and SHA1. These algorithms are disabled in FIPS, so it raises:

ValueError: [digital envelope routines: EVP_DigestInit_ex] disabled for FIPS

To Reproduce

Steps to reproduce the behavior:

1. Run deploy(...) inside a Python container with FIPS OpenSSL enabled
2. See error when Checksums.generate is invoked

Expected behavior

If checksum_enabled=False, checksum generation should be skipped entirely.

Screenshots

Work restricted - N/A

Environment:

• OS: Linux (GitLab EKS runner with FIPS-enabled OpenSSL)
• pyartifactory version: [2.10.0]

Additional context

Issue has been worked in a PR of mine (linked)

[tommycbird]

I've just realized that by not supplying a checksum from the client, Artifactory will post a warning that "Client did not publish a checksum value".

So, as an alternative solution to FIPS compliance, the hashing algorithms could be called with usedforsecurity=False.

[anancarv]

Fixed #222