Update modules/prometheus-source/go.mod

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Signed-off-by: Warwick <warwick@automatic.systems>

modules/prometheus-source/go.mod

@@ -1,6 +1,6 @@
 module github.com/opencost/opencost/modules/prometheus-source
 
-go 1.26.1
+go 1.25.5
 
 replace (
 	github.com/golang/lint => golang.org/x/lint v0.0.0-20180702182130-06c8688daad7