feat: add Temhem Builder Pass to ecosystem

This contribution adds 'Temhem Builder Pass' to the Base ecosystem project list. 

Temhem Builder Pass is an onchain utility and loyalty system deployed on Base, designed to certify builder identities and track contributions within the Temhem ecosystem. 

Contract Address: 0x17D5E86F83060E66A213D57375B8997576E48367
Chain: Base Mainnet

Author: temhemc

apps/web/data/ecosystem/temhem-builder-pass/metadata.json

@@ -0,0 +1,7 @@
+{
+  "name": "Temhem Builder Pass",
+  "description": "A loyalty and builder pass system on Base, certifying onchain contribution and identity for the Temhem ecosystem.",
+  "url": "https://thirdweb.com/base/0x17D5E86F83060E66A213D57375B8997576E48367",
+  "category": "utility",
+  "chain": 8453
+}