ci: drop alpine to 3.18 to avoid wasmer lib issues on 3.19 (#1318)

## Description

Closes: #XXXX

This PR drops alpine of building environment to 3.18 to avoid from the
issues with wasmer.

References:
CosmWasm/wasmvm#523
wasmerio/wasmer#4488

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### Author Checklist

*All items are required. Please add a note to the item if the item is
not applicable and
please add links to any relevant follow up issues.*

I have...

- [ ] included the correct [type
prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json)
in the PR title
- [ ] added `!` to the type prefix if API or client breaking change
- [ ] targeted the correct branch (see [PR
Targeting](https://github.com/desmos-labs/desmos/blob/master/CONTRIBUTING.md#pr-targeting))
- [ ] provided a link to the relevant issue or specification
- [ ] followed the guidelines for [building
modules](https://docs.cosmos.network/v0.44/building-modules/intro.html)
- [ ] included the necessary unit and integration
[tests](https://github.com/desmos-labs/desmos/blob/master/CONTRIBUTING.md#testing)
- [ ] added a changelog entry to `CHANGELOG.md`
- [ ] included comments for [documenting Go
code](https://blog.golang.org/godoc)
- [ ] updated the relevant documentation or specification
- [ ] reviewed "Files changed" and left comments if necessary
- [ ] confirmed all CI checks have passed

### Reviewers Checklist

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I have...

- [ ] confirmed the correct [type
prefix](https://github.com/commitizen/conventional-commit-types/blob/v3.0.0/index.json)
in the PR title
- [ ] confirmed `!` in the type prefix if API or client breaking change
- [ ] confirmed all author checklist items have been addressed
- [ ] reviewed state machine logic
- [ ] reviewed API design and naming
- [ ] reviewed documentation is accurate
- [ ] reviewed tests and test coverage
- [ ] manually tested (if applicable)

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


- **Chores**
- Updated the base image for the Desmos Builder to
`golang:1.20-alpine3.18` for improved stability and performance.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

Author: dadamu

contrib/images/desmos-builder/Dockerfile

@@ -1,4 +1,4 @@
-FROM golang:1.20-alpine
+FROM golang:1.20-alpine3.18
 ARG arch=x86_64
 
 # Set up dependencies