Copy old configs before testing (#2348)

## Description

Presently, any tests using our old configs happen in place. This is
problematic, as it changes the files themselves. This means that anyone
running the tests will cause unintentional modifications, which stand a
chance of being committed and merged into main. We want these old
database files to remain untouched, thus we copy them to a temp
directory prior to running our tests.

## Meta

Merge checklist:
- [x] Pull Request title is [short, imperative
summary](https://cbea.ms/git-commit/) of proposed changes
- [x] The description documents the _what_ and _why_, including events
that led to this PR
- [ ] If this PR changes behavior or adds a feature, user documentation
is updated
- [ ] If this PR touches photon-serde, all messages have been
regenerated and hashes have not changed unexpectedly
- [ ] If this PR touches configuration, this is backwards compatible
with all settings going back to the previous seasons's last release
(seasons end after champs ends)
- [ ] If this PR touches pipeline settings or anything related to data
exchange, the frontend typing is updated
- [ ] If this PR addresses a bug, a regression test for it is added

photon-core/src/test/java/org/photonvision/common/configuration/SQLConfigTest.java

@@ -22,9 +22,11 @@ import static org.junit.jupiter.api.Assertions.assertEquals;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import edu.wpi.first.cscore.UsbCameraInfo;
+import java.io.IOException;
 import java.nio.file.Path;
 import java.util.Collection;
 import java.util.List;
+import org.apache.commons.io.FileUtils;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Order;
 import org.junit.jupiter.api.Test;
@@ -43,7 +45,7 @@ import org.photonvision.vision.pipeline.PipelineType;
 import org.photonvision.vision.pipeline.ReflectivePipelineSettings;
 
 public class SQLConfigTest {
-    @TempDir private static Path tmpDir;
+    @TempDir private Path tmpDir;
 
     @BeforeAll
     public static void init() {
@@ -91,11 +93,15 @@ public class SQLConfigTest {
     }
 
     @Test
-    public void testLoad2024_3_1() {
-        var cfgLoader =
-                new SqlConfigProvider(
-                        TestUtils.getConfigDirectoriesPath(false)
-                                .resolve("photonvision_config_from_v2024.3.1"));
+    public void testLoad2024_3_1() throws IOException {
+        // Copy the 2024.3.1 config to a temp dir
+        FileUtils.copyDirectory(
+                TestUtils.getConfigDirectoriesPath(false)
+                        .resolve("photonvision_config_from_v2024.3.1")
+                        .toFile(),
+                tmpDir.resolve("photonvision_config_from_v2024.3.1").toFile());
+
+        var cfgLoader = new SqlConfigProvider(tmpDir.resolve("photonvision_config_from_v2024.3.1"));
 
         assertDoesNotThrow(cfgLoader::load);
 
@@ -128,8 +134,12 @@ public class SQLConfigTest {
     }
 
     @Test
-    public void testLoadNewNNMM() throws JsonProcessingException {
-        var folder = TestUtils.getConfigDirectoriesPath(false).resolve("2025.3.1-old-nnmm");
+    public void testLoadNewNNMM() throws JsonProcessingException, IOException {
+        var folder = tmpDir.resolve("2025.3.1-old-nnmm");
+        FileUtils.copyDirectory(
+                TestUtils.getConfigDirectoriesPath(false).resolve("2025.3.1-old-nnmm").toFile(),
+                folder.toFile());
+
         var cfgManager = new ConfigManager(folder, new SqlConfigProvider(folder));
 
         // Replace global configmanager
@@ -161,8 +171,12 @@ public class SQLConfigTest {
     }
 
     @Test
-    public void testMaxDetectionsMigration() {
-        var folder = TestUtils.getConfigDirectoriesPath(false).resolve("2025.3.1-old-nnmm");
+    public void testMaxDetectionsMigration() throws IOException {
+        var folder = tmpDir.resolve("2025.3.1-old-nnmm");
+        FileUtils.copyDirectory(
+                TestUtils.getConfigDirectoriesPath(false).resolve("2025.3.1-old-nnmm").toFile(),
+                folder.toFile());
+
         var cfgManager = new ConfigManager(folder, new SqlConfigProvider(folder));
 
         // Replace global configmanager