Update dependency pre-commit to v2

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
pre-commit	1.2.2 → 2.0.0

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Release Notes

observing/pre-commit (pre-commit)

v2.0.0

Compare Source

• Breaking: requires Node.js 16.13 or newer. engines.node is now
  declared as ">=16.13.0" to match the minimum required by which@4.
• Breaking: cross-spawn upgraded ^5 → ^7.0.5, fixing the ReDoS
  vulnerability (GHSA-3xgq-45jj-v275).
  cross-spawn's spawnSync now returns status/signal/error instead
  of code; index.js was updated to match.
• Breaking: which upgraded 1.2.x → ^4. The spawn-sync runtime
  dependency is dropped in favor of cross-spawn's built-in spawnSync.
• Breaking: the generated .git/hooks/pre-commit wrapper is rewritten.
  It is now a small bash script that execs the package's hook file via
  an absolute path (single-line invocation instead of multi-line inline
  bash). Anyone parsing the wrapper file will need to adjust.
• Breaking: hook file mode tightened from 0777 to 0755
  (CIS 6.1.10).
• Breaking: submodule installs now write to
  <super>/.git/modules/<sub>/hooks/pre-commit. The previous behavior
  silently walked up to the super-project's .git directory and installed
  there because the gitdir-parsing branch was unreachable. Linked worktrees
  (whose .git is also a file) are handled correctly too.
• The hook now unsets GIT_LITERAL_PATHSPECS, so commits triggered from
  emacs/magit behave the same as on the command line
  (magit FAQ).
• The hook now cds to the git root before resolving pre-commit via
  require.resolve, so Yarn Plug'n'Play and GUI git clients that invoke
  hooks with an unexpected cwd resolve dependencies correctly.
• The hook is resilient to a missing pre-commit package: switching to a
  branch without node_modules (or removing the package) no longer blocks
  commits — it exits 0 with a warning instead of throwing a Node
  module-not-found stack trace.
• Fixed handling of null close codes and signal-terminated scripts; the
  hook no longer treats a signal kill as success.
• Hardened install.js gitdir parsing against missing matches and bad
  input; gitdir: paths are resolved relative to the directory containing
  the .git file (was incorrectly resolved against the package root).
• install.js: typo fix ("backuped" → "backed up").
• Dev tooling refresh: mocha 3 → 10, assume 1 → 2, dropped istanbul
  for nyc.

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