Fix issue with Contact Us button

Author: nichanunpong

src/pages/our-sponsors.astro

@@ -219,7 +219,7 @@ const sponsorshipTiers = [
 					<p class="contact-description">
 						Ready to become a sponsor? Contact us to discuss how we can create a custom package for your organization.
 					</p>
-					<a href="mailto:sponsors@cloudsummit.ca" class="contact-button">
+					<a href="https://tally.so/r/wLqXvO" target="_blank" rel="noopener noreferrer" class="contact-button">
 						Contact Us
 					</a>
 				</div>