fix circular import

paperqa/prompts.py

@@ -1,5 +1,3 @@
-from .agents.helpers import get_year
-
 summary_prompt = (
     "Summarize the excerpt below to help answer a question.\n\nExcerpt from"
     " {citation}\n\n----\n\n{text}\n\n----\n\nQuestion: {question}\n\nDo not directly"
@@ -53,7 +51,7 @@
 citation_prompt = (
     "Provide the citation for the following text in MLA Format. "
     "Do not write an introductory sentence. "
-    f"If reporting date accessed, the current year is {get_year()}\n\n"
+    f"If reporting date accessed, the current year is 2025\n\n"
     "{text}\n\n"
     "Citation:"
 )