Plan for VPN server and client certificate expiration (#6331)

Author: achave11-ucsc

.github/ISSUE_TEMPLATE/vpn_certificate_renewals.md

@@ -0,0 +1,20 @@
+---
+name: Renew server and client VPN certificates 
+about: Issue template for the quarterly renewals of VPN certificates
+title: Renew VPN server and client certificates 
+labels: -,infra,orange
+_start: 2025-06-01T09:00
+_period: 3 months
+---
+
+- [ ] Renew server certificate on `tempdev`
+- [ ] Renew client certificates on `tempdev`
+- [ ] Hibernate `tempdev`
+- [ ] Renew server certificate on `dev`
+- [ ] Renew client certificates on `dev`
+- [ ] Renew server certificate on `anvildev`
+- [ ] Renew client certificates on `anvildev`
+- [ ] Renew server certificate on `prod`
+- [ ] Renew client certificates on `prod`
+- [ ] Renew server certificate on `anvilprod`
+- [ ] Renew client certificates on `anvilprod`