Bump symfony/css-selector from 3.1.3 to 3.4.31

[dependabot-preview[bot]]

Bumps symfony/css-selector from 3.1.3 to 3.4.31.

Commits

- [`e18c5c4`](https://github.com/symfony/css-selector/commit/e18c5c4b35e7f17513448a25d02f7af34a4bdb41) Fix inconsistent return points. - [`2c1cc00`](https://github.com/symfony/css-selector/commit/2c1cc0023710e2d5dbecff48ec9a13051c355218) Remove superfluous phpdoc tags - [`b6ab32e`](https://github.com/symfony/css-selector/commit/b6ab32e1b0ed7e603acdaa9134153bb757a24339) Fix return statements - [`3ccb722`](https://github.com/symfony/css-selector/commit/3ccb7220c47dcefd7f5716650bd928cbeab35022) Remove use of ForwardCompatTrait - [`ef9d317`](https://github.com/symfony/css-selector/commit/ef9d317b290d40cf4daa36df2a2e832a87e92e24) Fix deprecated phpunit annotation - [`16901fe`](https://github.com/symfony/css-selector/commit/16901fe646c2a7ed4927364513e4c8dc650b475f) Replace calls to setExpectedException by Pollyfill - [`8ca2929`](https://github.com/symfony/css-selector/commit/8ca29297c29b64fb3a1a135e71cb25f67f9fdccf) switched array() to [] - [`6722970`](https://github.com/symfony/css-selector/commit/6722970cdcc868b6b8ff06d1a21874c8e2f2f961) fix compatibility with PHPUnit 4.8 - [`c6798bd`](https://github.com/symfony/css-selector/commit/c6798bdac59b0c20e1d11a1543e88b77c774784e) Component CssSelector tests - [`12f8629`](https://github.com/symfony/css-selector/commit/12f86295c46c36af9896cf21db6b6b8a1465315d) \"ParserTest->getParserTestData()\" -> only some more tests - Additional commits viewable in [compare view](https://github.com/symfony/css-selector/compare/v3.1.3...v3.4.31)

Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting @dependabot rebase.

---

Dependabot commands and options

You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself) - `@dependabot use these labels` will set the current labels as the default for future PRs for this repo and language - `@dependabot use these reviewers` will set the current reviewers as the default for future PRs for this repo and language - `@dependabot use these assignees` will set the current assignees as the default for future PRs for this repo and language - `@dependabot use this milestone` will set the current milestone as the default for future PRs for this repo and language - `@dependabot badge me` will comment on this PR with code to add a "Dependabot enabled" badge to your readme Additionally, you can set the following in your Dependabot [dashboard](https://app.dependabot.com): - Update frequency (including time of day and day of week) - Pull request limits (per update run and/or open at any time) - Out-of-range updates (receive only lockfile updates, if desired) - Security updates (receive only security updates, if desired) Finally, you can contact us by mentioning @dependabot.

[dependabot-preview[bot]]

Superseded by #121.