Changes

Use GitHub Actions to execute tests on macOS and Windows in addition to Linux (#39)

Use `skipTests` instead of deprecated `skipExec` parameter of `tycho-surefire-plugin` (#37)

Fix typo (#40)

Upgrade Tycho to 3.0.5 (#41)

Upgrade spotless-maven-plugin to 2.40.0 and Eclipse JDT Formatter to 4.29 (#42)

Suppress the transfer progress in Maven (#43)

Bump actions/setup-java from 3.13.0 to 4.0.0 (#44)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 3.13.0 to 4.0.0.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](https://github.com/actions/setup-java/compare/0ab4596768b603586c0de567f2430c30f5b0d2b0...387ac29b308b003ca37ba93a6cab5eb57c8f5f93)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Prepare release 3.1.8

Prepare for next development iteration

Add Eclipse 4.31 target platform

Fix compilation error caused by change in org.eclipse.jdt.core 3.37.0 (#46)

Prior to this change execution of

```
mvn compile -Pe4.31
```

leads to

```
[ERROR] Failed to execute goal org.eclipse.tycho:tycho-compiler-plugin:3.0.5:compile (default-compile) on project org.eclipse.eclemma.core: Compilation failure: Compilation failure:
[ERROR] org.eclipse.eclemma.core/src/org/eclipse/eclemma/internal/core/SessionExporter.java:[174]
[ERROR]         this.tabWidth = IndentManipulation.getTabWidth(options);
[ERROR]                                            ^^^^^^^^^^^
[ERROR] The method getTabWidth(Map<String,String>) in the type IndentManipulation is not applicable for the arguments (Map<capture#1-of ?,capture#2-of ?>)
```

which is caused by change in
https://github.com/eclipse-jdt/eclipse.jdt.core/commit/4556ac22b87bd69828fed9fbcf8ce24c24fad2ec

Fix failure of ContextualLaunchableTesterTest caused by change in org.eclipse.debug.ui 3.18.300 (#47)

Prior to this change execution of

    mvn verify -Pe4.31 -DskipUITests=false

leads to

    java.lang.IndexOutOfBoundsException: Index 1 out of bounds for length 0
            at org.eclipse.eclemma.ui.ContextualLaunchableTesterTest.error_message_should_contain_delegate_shortcut_id(ContextualLaunchableTesterTest.java:59)

which is caused by change in
https://github.com/eclipse-platform/eclipse.platform/commit/494483ea135ec22a0327ec4c9500c693555d710f

Bump actions/setup-java from 4.0.0 to 4.1.0 (#48)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 4.0.0 to 4.1.0.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](https://github.com/actions/setup-java/compare/387ac29b308b003ca37ba93a6cab5eb57c8f5f93...9704b39bf258b59bc04b50fa2dd55e9ed76b47a8)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Add Eclipse 4.32 target platform

Bump actions/setup-java from 4.1.0 to 4.2.1 (#49)

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 4.1.0 to 4.2.1.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](https://github.com/actions/setup-java/compare/9704b39bf258b59bc04b50fa2dd55e9ed76b47a8...99b8673ff64fbf99d8d325f52d9a5bdedb8483e9)

---
updated-dependencies:
- dependency-name: actions/setup-java
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Upgrade JaCoCo to 0.8.12