Add way to select the tls implementation in the reqwest crate

[ntrippar]

Describe the purpose of your pull request

Added a feature to select which tls implementation to use in the reqwest crate

Related issues (only if applicable)

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How to test? (only if applicable)

• What part of the application was affected by the changes? What should be tested?

Security (only if applicable)

• Describe any potential risks that could affect the component in terms of security.

Requirement checklist (only if applicable)

• I have covered the applied changes with automated tests.
• I have executed the full automated test set against my changes.
• I have validated my changes against all supported platform versions.
• I have read and accepted the contribution agreement.

[z4kn4fein]

Hi @ntrippar, thank you for the contribution!