[Snyk] Security upgrade httpx from 0.21.3 to 0.23.0

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `pip` dependencies of this project.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • requirements.txt

⚠️ Warning

openapi-spec-validator 0.3.3 requires pyrsistent, which is not installed.
jsonschema 3.2.0 requires functools32, which is not installed.
jsonschema 3.2.0 requires pyrsistent, which is not installed.
google-auth 1.35.0 has requirement setuptools>=40.3.0, but you have setuptools 39.0.1.
google-api-core 1.32.0 has requirement protobuf<3.18.0,>=3.12.0; python_version < "3", but you have protobuf 3.18.0.
google-api-core 1.32.0 has requirement setuptools>=40.3.0, but you have setuptools 39.0.1.

Vulnerabilities that will be fixed

By pinning:

Severity	Priority Score (*)	Issue	Upgrade	Breaking Change	Exploit Maturity
	646/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 6.5	Improper Input Validation SNYK-PYTHON-HTTPX-2772742	httpx: 0.21.3 -> 0.23.0	No	Proof of Concept
	616/1000 Why? Proof of Concept exploit, Has a fix available, CVSS 5.9	Server-side Request Forgery (SSRF) SNYK-PYTHON-HTTPX-2805813	httpx: 0.21.3 -> 0.23.0	No	Proof of Concept

(*) Note that the real score may have changed since the PR was raised.

Some vulnerabilities couldn't be fully fixed and so Snyk will still find them when the project is tested again. This may be because the vulnerability existed within more than one direct dependency, but not all of the affected dependencies could be upgraded.

Check the changes in this PR to ensure they won't cause issues with your project.

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