As of JVM 12 and later it is no longer possible to cast away the
``final`` modifier using reflection so the ``forece{32,64}Bit``
helpers error out with an exception:

    Tests run: 34, Failures: 0, Errors: 2, Skipped: 1, Time elapsed: 0.052 sec <<< FAILURE! - in org.bridj.DemanglingTest
    testIntVsPointer_32bits(org.bridj.DemanglingTest)  Time elapsed: 0.006 sec  <<< ERROR!
    java.lang.RuntimeException: java.lang.NoSuchFieldException: modifiers
        at java.base/java.lang.Class.getDeclaredField(Class.java:2610)
        at org.bridj.util.ReflectionUtils.makeFieldWritable(ReflectionUtils.java:42)
        at org.bridj.util.PlatformTestUtils.forcePointerSize(PlatformTestUtils.java:22)
        at org.bridj.util.PlatformTestUtils.force32Bits(PlatformTestUtils.java:30)
        at org.bridj.DemanglingTest.testIntVsPointer_32bits(DemanglingTest.java:553)

    testIntVsPointer_64bits(org.bridj.DemanglingTest)  Time elapsed: 0.001 sec  <<< ERROR!
    java.lang.RuntimeException: java.lang.NoSuchFieldException: modifiers
        at java.base/java.lang.Class.getDeclaredField(Class.java:2610)
        at org.bridj.util.ReflectionUtils.makeFieldWritable(ReflectionUtils.java:42)
        at org.bridj.util.PlatformTestUtils.forcePointerSize(PlatformTestUtils.java:22)
        at org.bridj.util.PlatformTestUtils.force64Bits(PlatformTestUtils.java:33)
        at org.bridj.DemanglingTest.testIntVsPointer_64bits(DemanglingTest.java:566)

Disable those tests until the functionality can be restored.

References:

    - https://bugs.openjdk.java.net/browse/JDK-8210522
    - https://stackoverflow.com/a/56043252/7321177

Signed-off-by: Philipp Gesang <[email protected]>

This was tested on an M1 MacBook; it reports the machine type as
``arm64``, not ``aarch64``. The full ``uname -a`` output is:

    Darwin <NAME-REDACTED>-MBP14.local 22.2.0 Darwin Kernel Version 22.2.0: Fri Nov 11 02:03:51 PST 2022; root:xnu-8792.61.2~4/RELEASE_ARM64_T6000 arm64

This diverges from what ``System.getProperty("os.arch")`` reports
as the architecture.

Signed-off-by: Philipp Gesang <[email protected]>