fix(deps): update dependency org.entur:netex-gtfs-converter-java from v2.1.69 to v2.1.71 (#450)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

pom.xml

@@ -28,7 +28,7 @@
         <camel.version>4.8.5</camel.version>
         <entur.helpers.version>4.9</entur.helpers.version>
         <commons-io.version>2.11.0</commons-io.version>
-        <netex-gtfs-converter-java.version>2.1.69</netex-gtfs-converter-java.version>
+        <netex-gtfs-converter-java.version>2.1.71</netex-gtfs-converter-java.version>
         <zt-zip.version>1.17</zt-zip.version>
         <commons-csv.version>1.14.0</commons-csv.version>
         <prettier-java.version>2.1.0</prettier-java.version>