Update copyright in left column to 2025

Change-Id: Id0844794cb8ef5467bc07b120c50972a838cecc2
diff --git a/inst/rmarkdown/templates/posterdown_ids/resources/template.html b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
index b211371..d6256b9 100644
--- a/inst/rmarkdown/templates/posterdown_ids/resources/template.html
+++ b/inst/rmarkdown/templates/posterdown_ids/resources/template.html
@@ -711,7 +711,7 @@
 info@ids-mannheim.de<br/>
 www.ids-mannheim.de<br/>
 <br/>
-© 2024 IDS Mannheim/PR<br/>
+© 2025 IDS Mannheim/PR<br/>
 <br/>
 <br/>
 <svg