[CI] static analysis and Makefile improvements

[AshleyDumaine]

This change:

• adds a GHA workflow for static analysis tools (gosec, vulncheck, etc) and adds fixes for gosec
• standardizes the existing CI GHA workflow
• updates the Makefile to handle CI (GITHUB_ACTIONS env var exists in GHA) or local environments (where you might be on a mac and not have the necessary packages for the LUKS code to work, thus requiring a container to run certain tools or tests)
• Adds missing deps to mise.toml and fixes the specified go version (bumping to 1.26.7 as the most recent patch for 1.26)

[codecov]

Codecov Report

❌ Patch coverage is 27.27273% with 8 lines in your changes missing coverage. Please review.
✅ Project coverage is 71.33%. Comparing base (2738615) to head (f178740).

Files with missing lines	Patch %	Lines
internal/driver/controllerserver_helper.go	0.00%	1 Missing and 1 partial ⚠️
internal/driver/server.go	0.00%	1 Missing and 1 partial ⚠️
pkg/filesystem/filesystem.go	0.00%	2 Missing ⚠️
pkg/linode-client/token.go	60.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #600      +/-   ##
==========================================
- Coverage   71.51%   71.33%   -0.18%     
==========================================
  Files          25       25              
  Lines        2243     2250       +7     
==========================================
+ Hits         1604     1605       +1     
- Misses        507      510       +3     
- Partials      132      135       +3     

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