qt5: update to 5.15.5

[chrstphrchvz]

Description

https://github.com/qt/qtreleasenotes/blob/dev/qt/5.15.5/release-note.md

Type(s)

• bugfix
• enhancement
• security fix

Tested on

macOS 12.4
Xcode 13.4 / Command Line Tools 13.4

Verification

Have you

• followed our Commit Message Guidelines?
• squashed and minimized your commits?
• checked that there aren't other open pull requests for the same change?
• referenced existing tickets on Trac with full URL?
• checked your Portfile with port lint --nitpick?
• tried existing tests with sudo port test?
• tried a full install with sudo port -vst install?
• tested basic functionality of all binary files?

[macportsbot]

Notifying maintainers:
@MarcusCalhoun-Lopez for port qt5.

[chrstphrchvz]

This is ready for review

[reneeotten]

This is ready for review

You commented yourself about a build failure - has that been resolved or does the build still fail?

[chrstphrchvz]

This is ready for review

You commented yourself about a build failure - has that been resolved or does the build still fail?

My comment was meant just as a note pointing out that although I do not know what the exact cause for the build failure is, it has been resolved by adding conflicts_build.

[chrstphrchvz]

Revised to include changes for CVE-2021-38593 backported from 5.15.6 (which will be publicly released in September).