ci: Add govulncheck job. Update actions with deprecation warnings

[ARolek]

In this PR the following changes are made:

• Add govulncheck job. This will no run the go team vulnerability scan on every code change and report any issues.
• Upgrade all deprecated actions: Several actions were throwing deprecation warnings due to them using Node.js 16. I updated all actions that were throwing warnings to the newest versions available.

[coveralls]

Pull Request Test Coverage Report for Build a24cc1ff0

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 46.861%

---

Totals
Change from base Build 3e6bfb88f:	0.0%
Covered Lines:	6575
Relevant Lines:	14031

---

💛 - Coveralls