fix(gov): Add value decoder for attribute key "sender" (berachain#1397)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **New Features**
- Improved governance contract with enhanced address conversion
capabilities.
- Enhanced telemetry and metrics collection within the application for
better performance monitoring.
- Expanded Ethereum execution layer functionality with new backend
integration.

- **Refactor**
- Streamlined configuration initialization for improved application
setup.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

---------

Co-authored-by: ocnc <[email protected]>
Co-authored-by: itsdevbear <[email protected]>

cosmos/precompile/governance/governance.go

@@ -82,6 +82,7 @@ func (c *Contract) CustomValueDecoders() ethprecompile.ValueDecoders {
 	return ethprecompile.ValueDecoders{
 		AttributeProposalSender: log.ConvertCommonHexAddress,
 		AttributeProposalVote:   ConvertStringToVote,
+		sdk.AttributeKeySender:  c.ConvertAccAddressFromString,
 	}
 }
 
@@ -564,3 +565,10 @@ func ConvertStringToVote(attributeValue string) (any, error) {
 	}
 	return vote, nil
 }
+
+// ConvertAccAddressFromString converts a Cosmos string representing a account address to a
+// common.Address.
+func (c *Contract) ConvertAccAddressFromString(attributeValue string) (any, error) {
+	// extract the sdk.AccAddress from string value as common.Address
+	return cosmlib.EthAddressFromString(c.addressCodec, attributeValue)
+}

cosmos/precompile/governance/governance_test.go

@@ -107,7 +107,7 @@ var _ = Describe("Governance Precompile", func() {
 	It("Should have precompile tests and custom value decoders", func() {
 		_, err := sf.Build(contract, nil)
 		Expect(err).ToNot(HaveOccurred())
-		Expect(contract.CustomValueDecoders()).To(HaveLen(2))
+		Expect(contract.CustomValueDecoders()).To(HaveLen(3))
 	})
 
 	When("Unmarshal message and return any", func() {