fix: bump snyk docker plugin version golang fixes

[yaronschwimmer]

• Follows CONTRIBUTING rules

What does this PR do?

We had issues with Go modules not being detected. Version 5.0.1 of
snyk-docker-plugin should fix those issues.
This commit includes a workaround since we have a blocked PR (#3433) for
making app vulns the default using the lates version of
snyk-docker-plugin. Until we are able to make scanning app vulns the
default, we need to make sure that we set exclude-app-vulns option
when a user doesn't set the app-vulns option.

What are the relevant tickets?

https://snyksec.atlassian.net/browse/MYC-131

[github-actions]

Warnings

⚠️

Since the CLI is unifying on a standard and improved tooling, we're starting to migrate old-style imports and exports to ES6 ones. A file you've modified is using either module.exports or require(). If you can, please update them to ES6 import syntax and export syntax. Files found: src/cli/commands/monitor/index.ts src/cli/commands/test/index.ts test/tap/cli-monitor.acceptance.test.ts test/tap/cli-test/cli-test.docker.spec.ts

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