Link to Unit and Conformance Test Badges

[grant]

Summary: Add Unit and Conformance Tests badges for all repos. Show badges in README.

Workflows

• Name: <LANG> Unit CI
• Name: <LANG> Conformance CI

Fields

For example the fields for adding these badges for workflow Node.js CI would be this:

• IMG: https://github.com/GoogleCloudPlatform/functions-framework-nodejs/workflows/Node.js%20CI/badge.svg
• LINK: https://github.com/GoogleCloudPlatform/functions-framework-nodejs/actions?query=workflow%3A"Node.js+CI"

Example

(We should make action names be something simple like unit instead of Node.js%20CI

[grant]

Fixed with #37