docs(maintaining): add pull requests section

fix(socket): use xdgBasedir.runtime instead of tmp

docs(install): add raspberry pi section

This ensures the link is correct. Should fix #3355.

chore(deps-dev): bump @types/node from 12.20.12 to 12.20.13

Bumps [@types/node](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/node) from 12.20.12 to 12.20.13.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/node)
Signed-off-by: Ndependabot[bot] <support@github.com>

chore: ignore updates to microsoft/playwright-github-action

Microsoft publishes updates to this action using the same scheme
as GitHub, where the v1 tag is updated to the latest release of
the 1.0 series. Therefore, we can manage updates manually.

chore(deps-dev): bump prettier to 2.3.0

Bumps [@typescript-eslint/parser](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/parser) from 4.22.1 to 4.23.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/parser/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.23.0/packages/parser)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [@typescript-eslint/eslint-plugin](https://github.com/typescript-eslint/typescript-eslint/tree/HEAD/packages/eslint-plugin) from 4.22.1 to 4.23.0.
- [Release notes](https://github.com/typescript-eslint/typescript-eslint/releases)
- [Changelog](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/CHANGELOG.md)
- [Commits](https://github.com/typescript-eslint/typescript-eslint/commits/v4.23.0/packages/eslint-plugin)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [@types/ws](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/ws) from 7.4.2 to 7.4.4.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/ws)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Bumps [eslint](https://github.com/eslint/eslint) from 7.25.0 to 7.26.0.
- [Release notes](https://github.com/eslint/eslint/releases)
- [Changelog](https://github.com/eslint/eslint/blob/master/CHANGELOG.md)
- [Commits](https://github.com/eslint/eslint/compare/v7.25.0...v7.26.0)
Signed-off-by: Ndependabot[bot] <support@github.com>
Co-authored-by: Ndependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

fix(ci): fix typos in ci.yaml

fix(ci): disable trivy-scan-repo

* Check the logged user instead of $USER

Given that `sudo usermod --login "$DOCKER_USER" coder` and `sudo groupmod -n "$DOCKER_USER" coder` modify the container's disk it'll persist across restarts, but environment variables will be reset to whatever state they had at the end of `Dockerfile`. In this case, `$USER` is set to `coder`, so this branch will always be true.

By checking with the output of `whoami`, which gets it's information from `/etc/passwd`, we make sure to get the real logged user and not the one defined by $USER.

We also move `USER="$DOCKER_USER"` out of the branch, since we always want this to happen at entry-point. If we don't do this assignment, $USER will contain `coder` upon restart.

* Update entrypoint.sh

Check `$DOCKER_USER` was defined before copying it to `$USER`.

Also fixes release scripts.

docs: add changelog