chore(deps): remove some non-essential dependencies

[MikeMcC399]

• follows on from issue devDependencies review #164

Situation

Several devDependencies are problematic and unmaintained

Dependency	Issue
ban-sensitive-files	critical vulnerabilities
deps-ok	critical vulnerabilities
git-issues	depends on unsupported request
license-checker	unmaintained with deprecated dependencies

Change

Remove without replacement:

• ban-sensitive-files
• deps-ok
• git-issues
• license-checker

Update npm lockfileVersion to 3.

Remove standard badge from README, since this is no longer in use.

Verification

Execute

git clean -xfd
npm ci
npm test
npm run deps

Tests should run successfully.

[MikeMcC399]

@AtofStryker

This PR reduces vulnerabilities significantly from

Before

43 vulnerabilities (4 low, 10 moderate, 11 high, 18 critical)

After

13 vulnerabilities (3 low, 1 moderate, 3 high, 6 critical)

A follow-on PR will bump devDependencies to their latest versions and further reduce the count of vulnerabilities caused by devDependencies. 4 vulnerabilities (2 low, 2 high) is achievable by judicious updates and culling.

npm audit --omit=dev is showing 0 vulnerabilities, so at least the released package is good!

Please review when you have time! Thanks!

[github-actions]

🎉 This PR is included in version 2.2.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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