update copyright year

Author: ecpeterson

main.tex

@@ -6,7 +6,7 @@
 \title[Lecture Notes]{Formal Geometry and Bordism Operations}
 \author{Eric Peterson}
 % \date{{\footnotesize Compiled: \today \\ Git hash: {\gitAbbrevHash}{\gitDirty}}}
-\copyrightline{Copyright {\textcopyright} 2015--2023 Eric Peterson \\ This is derived from a pre-publication draft. The full version is available on the Cambridge University Press website. Any reproduction, in whole or in part, requires written permission.}
+\copyrightline{Copyright {\textcopyright} 2015--2025 Eric Peterson \\ This is derived from a pre-publication draft. The full version is available on the Cambridge University Press website. Any reproduction, in whole or in part, requires written permission.}