grantlee: switch to Qt6

[yurikoles]

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[yurikoles]

Please add label help wanted, I'm unsure how to pass test if qt is installed.

I check by linked?

[yurikoles]

grantlee-qt5 formula is discussable and may be dropped.

[yurikoles]

It seems that Linux runner is building qt from source, it has no bottle. :(

[chenrui333]

looks like no space on the linux build

/tmp/qt-20221215-123200-1tynvv7/qt-everywhere-src-6.4.1/qtscxml/src/statemachine/qstatemachine.h:164:2: fatal error: cannot write PCH file: No space left on device
  164 | };
      |  ^

[SMillerDev]

I'd say we can drop the qt5 version since that qt isn't actively developed anymore.

[yurikoles]

Forgot to mention upstream PR: steveire/grantlee#88

[yurikoles]

I dropped grantlee-qt5.

[BrewTestBot]

@SMillerDev has triggered a merge.