PrismLauncher: update 11.0.3

* bump version
* bump Darwin requirements (qt6 doesn't support Darwin 21)
* bump cxx standard per the CMakeLists.txt

games/PrismLauncher/Portfile

@@ -6,7 +6,7 @@ PortGroup           qt6 1.0
 PortGroup           java 1.0
 PortGroup           cmake 1.1
 
-github.setup        PrismLauncher PrismLauncher 11.0.1
+github.setup        PrismLauncher PrismLauncher 11.0.3
 github.tarball_from releases
 revision            0
 categories          games
@@ -16,11 +16,11 @@ description         A custom launcher for Minecraft
 long_description    PrismLauncher is {*}${description} that allows you to easily manage \
                     multiple installations of Minecraft at once.
 homepage            https://prismlauncher.org/
-checksums           rmd160 27f4a22cad174cdeaacb91f94d5877e585f997e7 \
-                    sha256 8dc12c1d5bfd67b1e07047313c606826da0079f214a81311d6f5e24005894e8d \
-                    size 4114142
+checksums           rmd160 3bcc8a11a7b04afe61e776ee0de525319bab16e7 \
+                    sha256 78c368140a4d49bf2a12ef0e03d045c6723fe8e5a5c9590668fb63ee0a264ef2 \
+                    size 4111624
 
-platforms           {darwin >= 21}
+platforms           {darwin >= 22}
 
 patchfiles          patch-fetch-tomlplusplus.diff \
                     patch-destdir-qt-deploy.diff
@@ -40,7 +40,7 @@ cmake.build_type    Release
 java.fallback       openjdk8
 java.version        1.8
 
-compiler.cxx_standard 2017
+compiler.cxx_standard 2020
 
 qt6.depends_build   qtnetworkauth