Upgrade gotest.tools to latest maintained version in saml

[ShivaliBandi]

Description:
Our project depends on github.com/crewjam/saml:v0.4.14. One of its child dependencies, gotest.tools:v2.2.0, appears to be outdated or end-of-life and should be upgraded to a maintained version to ensure continued stability and compatibility.

Impact:

Using an outdated library may pose potential security or maintenance risks.

Compatibility issues might arise with newer Go versions or dependent modules.

Suggested Solution:

Identify a maintained version or replacement for gotest.tools.

Update the dependency reference in the go.mod file.

Rebuild the project and ensure that all tests pass successfully.

Verify backward compatibility with saml.

References:

Parent library: github.com/crewjam/saml:v0.4.14

Child library: gotest.tools:v2.2.0