[AMS-2025] Updated link to new Ams sponsorship prospectus (#14822)

Co-authored-by: Timothy Mamo <[email protected]>

content/events/2025-amsterdam/sponsor.md

@@ -4,7 +4,7 @@ Type = "event"
 Description = "Sponsor DevOpsDays Amsterdam 2025"
 +++
 
-We greatly value sponsors for this open event.  If you are interested in sponsoring, please <a href="https://assets.devopsdays.org/events/2025/amsterdam/DevOpsDays_Amsterdam_2025_Prospectus.pdf">take a look at our prospectus</a>, then drop us an email at [{{< email_organizers >}}].
+We greatly value sponsors for this open event.  If you are interested in sponsoring, please <a href="https://assets.devopsdays.org/events/2025/amsterdam/DevOpsDays_Amsterdam_2025_Prospectus_V2.pdf">take a look at our prospectus</a>, then drop us an email at [{{< email_organizers >}}].
 
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