bump minimatch from 3.0.4 to 3.1.2 in /packages/google-cloud-shell#4

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dependabot/npm_and_yarn/packages/google-cloud-shell/minimatch-3.1.2QPC-github/google-cloud-node:dependabot/npm_and_yarn/packages/google-cloud-shell/minimatch-3.1.2Copy head branch name to clipboard