Deploy on chain fee quoting onto mainnet (#1954)

### Description

Enforce gas amounts on mainnet

### Drive-by changes

none

### Related issues

- Fixes #1610 

### Backward compatibility

_Are these changes backward compatible?_

Yes

_Are there any infrastructure implications, e.g. changes that would
prohibit deploying older commits using this infra tooling?_

None


### Testing

_What kind of testing have these changes undergone?_

Deployed & sent some test messages

typescript/infra/config/environments/mainnet2/agent.ts

@@ -29,7 +29,7 @@ export const hyperlane: AgentConfig = {
   context: Contexts.Hyperlane,
   docker: {
     repo: 'gcr.io/abacus-labs-dev/hyperlane-agent',
-    tag: '1cbe5fd-20230309-202035',
+    tag: '81ad229-20230316-173735',
   },
   aws: {
     region: 'us-east-1',
@@ -60,8 +60,7 @@ export const hyperlane: AgentConfig = {
           matchingList: interchainQueriesMatchingList,
         },
         {
-          type: GasPaymentEnforcementPolicyType.Minimum,
-          payment: '1',
+          type: GasPaymentEnforcementPolicyType.OnChainFeeQuoting,
         },
       ],
     },
@@ -75,7 +74,7 @@ export const releaseCandidate: AgentConfig = {
   context: Contexts.ReleaseCandidate,
   docker: {
     repo: 'gcr.io/abacus-labs-dev/hyperlane-agent',
-    tag: '1cbe5fd-20230309-202035',
+    tag: '81ad229-20230316-173735',
   },
   aws: {
     region: 'us-east-1',
@@ -95,8 +94,7 @@ export const releaseCandidate: AgentConfig = {
           matchingList: interchainQueriesMatchingList,
         },
         {
-          type: GasPaymentEnforcementPolicyType.Minimum,
-          payment: '1',
+          type: GasPaymentEnforcementPolicyType.OnChainFeeQuoting,
         },
       ],
       transactionGasLimit: 750000,