Metals VS Code v1.7.8

What’s Changed

• use checkoutv2 push rather than github-push-action (#203) @ckipp01
• Use stricter tsconfig (#202) @gabro
• Various updates to the extension (#199) @gabro
• Merge pull request #196 from scalameta/dependabot/npm_and_yarn/promisify-child-process-3.1.3 (#196) @dependabot-preview
• Merge pull request #193 from scalameta/dependabot/npm_and_yarn/vscode-1.1.36 (#193) @dependabot-preview
• Merge pull request #195 from scalameta/dependabot/npm_and_yarn/https-proxy-agent-2.2.4 (#195) @dependabot-preview