Merge branch 'macos' into 'master'

.github/workflows/checks.yaml

...ava/org/briarproject/onionwrapper/AbstractTorWrapper.java

...main/java/org/briarproject/onionwrapper/util/OsUtils.java

.../java/org/briarproject/onionwrapper/util/StringUtils.java

...rc/test/java/org/briarproject/onionwrapper/TestUtils.java

onionwrapper-java/build.gradle

...ain/java/org/briarproject/onionwrapper/MacTorWrapper.java

...in/java/org/briarproject/onionwrapper/UnixTorWrapper.java

...est/java/org/briarproject/onionwrapper/BootstrapTest.java

...c/test/java/org/briarproject/onionwrapper/BridgeTest.java

...ava/org/briarproject/onionwrapper/ResourcesLinuxTest.java

.../java/org/briarproject/onionwrapper/ResourcesMacTest.java

...a/org/briarproject/onionwrapper/ResourcesWindowsTest.java