[CI] Switch from GitHub Actions to CircleCI

Author: adamretter

.circleci/config.yml

@@ -6,7 +6,7 @@
 
 ## Elemental - Native XML Database
 
-[![Build Status](https://github.com/evolvedbinary/elemental/actions/workflows/ci-test.yml/badge.svg?branch=develop-6.x.x)](https://github.com/evolvedbinary/elemental/actions/workflows/ci-test.yml)
+[![Build Status](https://dl.circleci.com/status-badge/img/gh/evolvedbinary/elemental/tree/develop-6.x.x.svg?style=svg)](https://dl.circleci.com/status-badge/redirect/gh/evolvedbinary/elemental/tree/develop-6.x.x)
 [![Coverage Status](https://coveralls.io/repos/github/evolvedbinary/elemental/badge.svg?branch=main)](https://coveralls.io/github/evolvedbinary/elemental?branch=main)
 [![Codacy Badge](https://app.codacy.com/project/badge/Grade/ae1c8a7eb1164e919b0ac3c8588560c6)](https://www.codacy.com/gh/evolvedbinary/elemental/dashboard?utm_source=github.com&utm_medium=referral&utm_content=evolvedbinary/elemental&utm_campaign=Badge_Grade)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=evolvedbinary_elemental&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=evolvedbinary_elemental)

.github/FUNDING.yml

@@ -100,6 +100,15 @@
         <objenesis.version>3.4</objenesis.version>
         <jaxb.api.version>3.0.1</jaxb.api.version>
         <jaxb.impl.version>3.0.2</jaxb.impl.version>
+
+        <!-- Surefire parallel configuration -->
+        <surefire.forkCount>1C</surefire.forkCount>
+        <!--
+            Setting `reuseForks` to `true` greatly speeds up execution of the test suite.
+            However, it can make it hard to diagnose problems if tests leak state; If you experience
+            such a problem you may want to set it to `false` whilst debugging
+         -->
+        <surefire.reuseForks>true</surefire.reuseForks>
     </properties>
 
     <build>
@@ -377,11 +386,9 @@
                         </dependency>
                     </dependencies>
                     <configuration>
-                        <forkCount>2C</forkCount>
-                        <!--  Setting `reuseForks` to `true` greatly speeds up execution of the test suite.
-                              However it can make it hard to diagnose problems if tests leak state; If you experience
-                              such a problem you may want to set it to `false` whilst debugging -->
-                        <reuseForks>true</reuseForks>
+                        <forkNode implementation="org.apache.maven.plugin.surefire.extensions.SurefireForkNodeFactory" />
+                        <forkCount>${surefire.forkCount}</forkCount>
+                        <reuseForks>${surefire.reuseForks}</reuseForks>
                         <argLine>@{jacocoArgLine} -XX:+IgnoreUnrecognizedVMOptions --illegal-access=debug --add-opens=java.base/java.lang=ALL-UNNAMED --add-opens=java.base/java.lang.ref=ALL-UNNAMED --add-opens=java.base/java.lang.reflect=ALL-UNNAMED -Dfile.encoding=${project.build.sourceEncoding}</argLine>
                         <systemPropertyVariables>
                             <user.country>UK</user.country>