Fix signature containing boolean values

[0x4a616e]

True in python was converted to "True" in signature calculation. JSON serialisation however converted it to "true", which resulted in invalid signatures being calculated.

Brief Summary of Changes

Signature calculation correctly handles boolean values.

What does this PR address?

• GitHub issue (Add reference - #XX)
• Refactoring
• New feature
• Bug fix
• Adds more tests

Are tests included?

• Yes
• No

Reviewer, please note:

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I ran the full test suite before pushing the changes and all the tests pass.

[const-cloudinary]

@0x4a616e , thank you for the pull request!

This is an internal (although marked as public) function.

The function to use is:

pycloudinary/cloudinary/utils.py

Line 614 in 002c705

def sign_request(params, options):

Inside it performs parameters cleanup and normalization:

pycloudinary/cloudinary/utils.py

Line 623 in 002c705

params = cleanup_params(params)

pycloudinary/cloudinary/utils.py

Line 591 in 002c705

def cleanup_params(params):

(please note that boolean parameters in Upload API are converted to integers (1/0).

If you still prefer to keep your fix, please add a unit test somewhere here:

pycloudinary/test/test_utils.py

Line 1452 in 002c705

def test_api_sign_request_sha256(self):

And after that we can merge it.