Merge #21376: depends: Qt 5.12.10

550ed1bed2 build: update qt qpaint non determinism patch for 5.12.10 (fanquake)
6093ae4d30 build: update qt no-xlib patch for 5.12.10 (fanquake)
84928c4e73 build: update qt android jni static patch for 5.12.10 (fanquake)
cc6f47d51a build: update qt lrelease patch for 5.12.10 (fanquake)
286d07ff17 build, qt: Fix lib paths in *.pc files (Hennadii Stepanov)
fa5e97e8c2 build: disable qt SDK version checking (fanquake)
1be8e0f238 build: Add QMacStyle support (Hennadii Stepanov)
e674e94302 build: revert to using Qts internal zlib (fanquake)
06cd0da21f build: qt 5.12.10 (fanquake)
3272e34f9c build: Add xkbcommon 0.8.4 (Hennadii Stepanov)
d769b3372d build: only pass -optimized-tools to qt in debug mode (fanquake)

Pull request description:

  Switch to Qt 5.12.10 in depends. Based on #21363. This is a much smaller changeset, and should be easier to review than #19716. Also postpones needing to bring a bunch of new libs into depends.

  Big thanks to Hebasto that has been helping with this.

ACKs for top commit:
  laanwj:
    Code review ACK 550ed1bed2
  hebasto:
    ACK 550ed1bed2
  jarolrod:
    ACK 550ed1bed2 , tested on macOS 11.2 built from depends

Tree-SHA512: cb6b70f5a5372ba0b64f7ddfa696eda0411922cd261c67bfa2d9332c685a7b358ab18e5cfaa677b414ae8ad78296bba6ed0eecd071fdacdf736a0d030f679fe5

src/qt/bitcoin.cpp

@@ -62,6 +62,7 @@ Q_IMPORT_PLUGIN(QXcbIntegrationPlugin);
 Q_IMPORT_PLUGIN(QWindowsIntegrationPlugin);
 #elif defined(QT_QPA_PLATFORM_COCOA)
 Q_IMPORT_PLUGIN(QCocoaIntegrationPlugin);
+Q_IMPORT_PLUGIN(QMacStylePlugin);
 #endif
 #endif