chore: remove unused code, update deps and use node18 in CI

[socket-security[bot]]

New and removed dependencies detected. Learn more about Socket for GitHub ↗︎

Package	New capabilities	Transitives	Size	Publisher
npm/@types/node@18.11.9	None	0	3.56 MB	types
npm/@types/vscode@1.75.0	None	0	594 kB	types
npm/axios@1.6.8	network Transitive: environment, filesystem	+8	2.22 MB	jasonsaayman
npm/glob@10.3.12	Transitive: environment, filesystem, shell	+25	2.59 MB	isaacs
npm/minipass@7.0.4	None	0	285 kB	isaacs
npm/prettier@3.2.5	environment, filesystem, unsafe	0	8.39 MB	prettier-bot
npm/string-width@5.1.2	None	+4	127 kB	sindresorhus
npm/typescript@5.4.5	None	0	32.4 MB	typescript-bot

🚮 Removed packages: npm/@nodelib/fs.stat@2.0.5, npm/@nodelib/fs.walk@1.2.8, npm/@types/glob@8.0.1, npm/@types/mocha@10.0.1, npm/@types/node@16.18.16, npm/@types/semver@7.3.13, npm/@types/vscode@1.66.0, npm/@typescript-eslint/eslint-plugin@5.51.0, npm/@typescript-eslint/parser@5.51.0, npm/@vscode/test-electron@2.1.5, npm/ajv@6.12.6, npm/axios@1.6.2, npm/braces@3.0.2, npm/chalk@4.1.2, npm/debug@4.3.4, npm/escape-string-regexp@4.0.0, npm/eslint@8.33.0, npm/estraverse@5.3.0, npm/fast-deep-equal@3.1.3, npm/find-up@5.0.0, npm/glob@8.1.0, npm/graceful-fs@4.2.11, npm/import-fresh@3.3.0, npm/inherits@2.0.4, npm/is-glob@4.0.3, npm/js-yaml@4.1.0, npm/merge2@1.4.1, npm/mocha@10.2.0, npm/normalize-path@3.0.0, npm/picomatch@2.3.1, npm/prettier@2.8.6, npm/readable-stream@2.3.8, npm/strip-json-comments@3.1.1, npm/type-check@0.4.0, npm/typescript@4.9.5, npm/yargs-parser@20.2.4

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