Update to Fedora 39, update all toolchains

- Base image: Fedora 39
- SCons: 4.5.2
- Linux: GCC 10.2.0 built against glibc 2.19, binutils 2.35.1
- Windows: MinGW 11.0.0, GCC 13.2.1, binutils 2.40
- Web: Emscripten 3.1.39
- Android: Android NDK 23.2.8568313, build-tools 33.0.2, platform android-33, CMake 3.22.1, JDK 17
  CMake 3.22.1, JDK 17
- macOS: Xcode 15.0 with Apple Clang (LLVM 16.0.0), MacOSX SDK 14.0
- iOS: Xcode 15.0 with Apple Clang (LLVM 16.0.0), iPhoneOS SDK 17.0

Switches macOS/iOS builds to use Apple Clang, to maximize compatibility with
upstream Xcode.

Also add gettext which is needed by Godot build scripts to compile PO files
to MO.

Dockerfile.android

@@ -6,13 +6,13 @@ ENV ANDROID_NDK_VERSION=23.2.8568313
 ENV ANDROID_NDK_ROOT=${ANDROID_SDK_ROOT}/ndk/${ANDROID_NDK_VERSION}
 
 RUN dnf -y install --setopt=install_weak_deps=False \
-      java-11-openjdk-devel ncurses-compat-libs && \
+      java-17-openjdk-devel ncurses-compat-libs && \
     mkdir -p sdk && cd sdk && \
-    export CMDLINETOOLS=commandlinetools-linux-8512546_latest.zip && \
+    export CMDLINETOOLS=commandlinetools-linux-10406996_latest.zip && \
     curl -LO https://dl.google.com/android/repository/${CMDLINETOOLS} && \
     unzip ${CMDLINETOOLS} && \
     rm ${CMDLINETOOLS} && \
     yes | cmdline-tools/bin/sdkmanager --sdk_root="${ANDROID_SDK_ROOT}" --licenses && \
-    cmdline-tools/bin/sdkmanager --sdk_root="${ANDROID_SDK_ROOT}" "ndk;${ANDROID_NDK_VERSION}" 'cmdline-tools;latest' 'build-tools;32.0.0' 'platforms;android-32' 'cmake;3.18.1'
+    cmdline-tools/bin/sdkmanager --sdk_root="${ANDROID_SDK_ROOT}" "ndk;${ANDROID_NDK_VERSION}" 'cmdline-tools;latest' 'build-tools;33.0.2' 'platforms;android-33' 'cmake;3.22.1'
 
 CMD /bin/bash