fix(testcontainers): align versions and stabilize PostGIS setup

Unify Testcontainers dependencies to a consistent version and remove
custom container tweaks that caused instability with Podman.

- align all Testcontainers dependencies to 2.0.5
- remove `HostPortWaitStrategy` (PostgreSQLContainer already defines an appropriate wait strategy)
- remove `withReuse(true)` (may retain state across runs and break reproducibility)

Signed-off-by: Marcus Fihlon <marcus@fihlon.swiss>

src/test/java/net/javahippie/fitpub/config/TestcontainersConfiguration.java

@@ -4,7 +4,6 @@ import org.springframework.boot.test.context.TestConfiguration;
 import org.springframework.boot.testcontainers.service.connection.ServiceConnection;
 import org.springframework.context.annotation.Bean;
 import org.testcontainers.containers.PostgreSQLContainer;
-import org.testcontainers.containers.wait.strategy.HostPortWaitStrategy;
 import org.testcontainers.utility.DockerImageName;
 
 /**
@@ -23,8 +22,6 @@ public class TestcontainersConfiguration {
         )
                 .withDatabaseName("testdb")
                 .withUsername("test")
-                .withPassword("test")
-                .waitingFor(new HostPortWaitStrategy())
-                .withReuse(true);
+                .withPassword("test");
     }
 }