Update schemas.md

Add Season 4 cogranting, RetroPGF contribution and Governance contribution schemas

src/docs/identity/schemas.md

@@ -13,8 +13,13 @@ Below you will find a list of relevant schemas that are being used on OP Mainnet
 ## Developer schemas
 - **[Superchain Faucet schema UID](https://optimism.easscan.org/schema/view/0x98ef220cd2f94de79fbc343ef982bfa8f5b315dec6a08f413680ecb7085624d7):** `0x98ef220cd2f94de79fbc343ef982bfa8f5b315dec6a08f413680ecb7085624d7`
 
+## Governance schemas
+- [**Season 4 Co-grant participant schema UID**](https://optimism.easscan.org/schema/view/0x401a80196f3805c57b00482ae2b575a9f270562b6b6de7711af9837f08fa0faf):`0x401a80196f3805c57b00482ae2b575a9f270562b6b6de7711af9837f08fa0faf` Important: Remember to verify the attester address is `0x3C7820f2874b665AC7471f84f5cbd6E12871F4cC` or `0x2a0eB7cAE52B68e94FF6ab0bFcf0dF8EeEB624be`
+- **[Governance contribution schema UID](https://optimism.easscan.org/schema/view/0xef874554718a2afc254b064e5ce9c58c9082fb9f770250499bf406fc112bd315)**:`0xef874554718a2afc254b064e5ce9c58c9082fb9f770250499bf406fc112bd315`. Important: Remember to verify the attester address is `0x621477dBA416E12df7FF0d48E14c4D20DC85D7D9`
+
 ## RetroPGF schemas
-- **[RetroPGF Badgeholders schema UID](https://optimism.easscan.org/schema/view/0xfdcfdad2dbe7489e0ce56b260348b7f14e8365a8a325aef9834818c00d46b31b):** `0xfdcfdad2dbe7489e0ce56b260348b7f14e8365a8a325aef9834818c00d46b31b`. Important: Remember to verify the attester address is `0x621477dBA416E12df7FF0d48E14c4D20DC85D7D9`
+- **[RetroPGF Badgeholders schema UID](https://optimism.easscan.org/schema/view/0xfdcfdad2dbe7489e0ce56b260348b7f14e8365a8a325aef9834818c00d46b31b):**`0xfdcfdad2dbe7489e0ce56b260348b7f14e8365a8a325aef9834818c00d46b31b`. Important: Remember to verify the attester address is `0x621477dBA416E12df7FF0d48E14c4D20DC85D7D9`
+- **[RetroPGF governance contributor schema UID](https://optimism.easscan.org/schema/view/0x3743be2afa818ee40304516c153427be55931f238d961af5d98653a93192cdb3):**`0x3743be2afa818ee40304516c153427be55931f238d961af5d98653a93192cdb3`. Important: Remember to verify the attester address is `0x621477dBA416E12df7FF0d48E14c4D20DC85D7D9`
 - **[RetroPGF 3 Approved Application schema UID](https://optimism.easscan.org/schema/view/0xebbf697d5d3ca4b53579917ffc3597fb8d1a85b8c6ca10ec10039709903b9277):**`0xebbf697d5d3ca4b53579917ffc3597fb8d1a85b8c6ca10ec10039709903b9277`. Important: Remember to verify the attester address is `0x621477dBA416E12df7FF0d48E14c4D20DC85D7D9`
 - **[RetroPGF 3 Application schema UID](https://optimism.easscan.org/schema/view/0x76e98cce95f3ba992c2ee25cef25f756495147608a3da3aa2e5ca43109fe77cc):** `0x76e98cce95f3ba992c2ee25cef25f756495147608a3da3aa2e5ca43109fe77cc`
 - **[RetroPGF 3 Lists schema UID](https://optimism.easscan.org/schema/view/0x3e3e2172aebb902cf7aa6e1820809c5b469af139e7a4265442b1c22b97c6b2a5):** `0x3e3e2172aebb902cf7aa6e1820809c5b469af139e7a4265442b1c22b97c6b2a5`