To resolve the following High Sev vulnerabilities, update go.mod to use github.com/stretchr/testify v1.9.0 instead of github.com/stretchr/testify v1.7.0

Snyk test output before:

✗ High severity vulnerability found in gopkg.in/yaml.v3
Description: Denial of Service (DoS)
Info: https://security.snyk.io/vuln/SNYK-GOLANG-GOPKGINYAMLV3-2841557
Introduced through: github.com/stretchr/testify/[email protected]
From: github.com/stretchr/testify/[email protected] > github.com/stretchr/testify/[email protected] > gopkg.in/yaml.v3@#9f266ea9e77c
Fixed in: 3.0.0

✗ High severity vulnerability found in gopkg.in/yaml.v3
Description: NULL Pointer Dereference
Info: https://security.snyk.io/vuln/SNYK-GOLANG-GOPKGINYAMLV3-2952714
Introduced through: github.com/stretchr/testify/[email protected]
From: github.com/stretchr/testify/[email protected] > github.com/stretchr/testify/[email protected] > gopkg.in/yaml.v3@#9f266ea9e77c
Fixed in: 3.0.1

Snyk test output after:
✔ Tested 6 dependencies for known issues, no vulnerable paths found.