Bump symfony/yaml from 2.6.6 to 2.8.52

[dependabot-preview]

⚠️ Dependabot Preview has been deactivated ⚠️

This pull request was created by Dependabot Preview, and you've upgraded to Dependabot. This means it won't respond to dependabot commands nor will it be automatically closed if a new version is found.

If you close this pull request, Dependabot will re-create it the next time it checks for updates and everything will work as expected.

---

Bumps symfony/yaml from 2.6.6 to 2.8.52.

Changelog

Sourced from symfony/yaml's changelog.

CHANGELOG

5.3

• Added github format support & autodetection to render errors as annotations when running the YAML linter command in a Github Action environment.

5.1.0

• Added support for parsing numbers prefixed with 0o as octal numbers.

• Deprecated support for parsing numbers starting with 0 as octal numbers. They will be parsed as strings as of Symfony 6.0. Prefix numbers with 0o so that they are parsed as octal numbers.

  Before:

  Yaml::parse('072');

  After:

  Yaml::parse('0o72');

• Added yaml-lint binary.

• Deprecated using the !php/object and !php/const tags without a value.

5.0.0

• Removed support for mappings inside multi-line strings.
• removed support for implicit STDIN usage in the lint:yaml command, use lint:yaml - (append a dash) instead to make it explicit.

4.4.0

• Added support for parsing the inline notation spanning multiple lines.
• Added support to dump null as ~ by using the Yaml::DUMP_NULL_AS_TILDE flag.
• deprecated accepting STDIN implicitly when using the lint:yaml command, use lint:yaml - (append a dash) instead to make it explicit.

4.3.0

• Using a mapping inside a multi-line string is deprecated and will throw a ParseException in 5.0.

4.2.0

... (truncated)

Commits

• 02c1859 Bump phpunit XSD version to 5.2
• 0e16589 CS fix
• 5baf0f8 Fix code examples in PHPDoc
• fbf8766 Alpha-ordering for "use" statements
• acaaa95 Enable the fixer enforcing fully-qualified calls for compiler-optimized funct...
• 51356b7 Merge branch '2.7' into 2.8
• 5bbd7e6 Use symfony/polyfill-ctype
• d20bd2b Merge branch '2.7' into 2.8
• e2c80e6 [Yaml] Throw parse error on unfinished inline map
• be720fc Merge branch '2.7' into 2.8
• Additional commits viewable in compare view

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.

---

Note: This repo was added to Dependabot recently, so you'll receive a maximum of 5 PRs for your first few update runs. Once an update run creates fewer than 5 PRs we'll remove that limit.

You can always request more updates by clicking Bump now in your Dependabot dashboard.

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:

• 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)