[Security] Bump symfony/http-foundation from 4.3.4 to 4.3.8

[dependabot-preview]

Bumps symfony/http-foundation from 4.3.4 to 4.3.8. This update includes a security fix.

Vulnerabilities fixed

Sourced from The PHP Security Advisories Database.

CVE-2019-18888: Prevent argument injection in a MimeTypeGuesser

Affected versions: >=2.0.0, <2.1.0; >=2.1.0, <2.2.0; >=2.2.0, <2.3.0; >=2.3.0, <2.4.0; >=2.4.0, <2.5.0; >=2.5.0, <2.6.0; >=2.6.0, <2.7.0; >=2.7.0, <2.8.0; >=2.8.0, <2.8.52; >=3.0.0, <3.1.0; >=3.1.0, <3.2.0; >=3.2.0, <3.3.0; >=3.3.0, <3.4.0; >=3.4.0, <3.4.35; >=4.0.0, <4.1.0; >=4.1.0, <4.2.0; >=4.2.0, <4.2.12; >=4.3.0, <4.3.8

Commits

• cabe672 Merge branch '3.4' into 4.3
• 9e4b3ac [HttpFoundation] fix guessing mime-types of files with leading dash
• 514e5bb Merge branch '3.4' into 4.3
• a5d46a3 Fix MockFileSessionStorageTest::sessionDir being used after it's unset
• 38f63e4 [4.3] Remove unused local variables
• 9a98f13 [HttpFoundation] Allow to not pass a parameter to Request::isMethodSafe()
• d7f44cf Merge branch '3.4' into 4.3
• 7b4626a Remove unused local variables in tests
• 9c134c0 Merge branch '3.4' into 4.3
• 4db558c Add plus character + to legal mime subtype
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #101.