Fixed ICA test reliability, simplified Dockerfile, and added CI workflow

[akobrin1]

• Fixed Docker API version mismatch by pinning to v25.0.6 (API v1.44+, compatible with interchaintest v8)
• Fixed 4 reliability bugs in ICA test: silent tx failure parsing, hardcoded ICA channel ID, no retry on ICA address query, unchecked bank send result
• Simplified Dockerfile after crisis module removal in Lumera v1.10.1 (removed entrypoint script, kept flag-stripping wrapper)
• Removed v1.9.1 version-specific code paths (single genesis modifier, no more ChainVersion enum)
• Updated buildpacket tool for sdk-go v1.0.9 (NewMultiChainKeyring → NewKeyring + KeyTypeCosmos)
• Added GitHub Actions CI workflow with reusable setup-go composite action

[Copilot]

Pull request overview

This pull request improves the reliability and simplicity of the Lumera interchaintest suite through bug fixes, version updates, and removal of legacy code paths.

Changes:

• Fixed Docker API compatibility by pinning to v25.0.6 (API v1.44+)
• Fixed 4 ICA test reliability bugs: silent tx failure parsing, hardcoded channel ID, missing retry logic, and unchecked bank send
• Removed v1.9.1-specific code paths and simplified to single genesis modifier
• Updated buildpacket tool for sdk-go v1.0.9 API changes (NewMultiChainKeyring → NewKeyring)
• Added GitHub Actions CI workflow with composite setup-go action
• Updated numerous dependency versions in go.sum/go.mod

Reviewed changes

Copilot reviewed 14 out of 17 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
go.mod	Updated Docker pin from v24 to v25, added new indirect dependencies
go.sum	Updated many transitive dependencies to newer versions
tools/buildpacket/main.go	Updated to use sdk-go v1.0.9 keyring API (NewKeyring + KeyTypeCosmos), added detailed comments
tools/buildpacket/go.mod	Updated sdk-go to v1.0.9, cosmos-sdk to v0.53.5, ibc-go to v10.5.0
tools/buildpacket/go.sum	Updated dependency checksums for new versions
ica_test.go	Fixed tx response parsing, added polling for ICA address, added findICAChannel, improved error handling, cached buildpacket binary compilation
chain_config.go	Removed ChainVersion enum and v1.9.1-specific code, simplified to single genesis modifier
genesis_test.go	Removed v1.9.1 version checks and TestBothVersions, simplified to test single version
start-lumera-standalone.sh	Removed version-specific crisis module removal logic
Dockerfile	Removed entrypoint script (crisis module handling now in wrapper only)
Makefile	Removed version-specific targets, added LUMERA_VERSION variable
build-docker.sh	Updated example command to use generic version placeholder
README.md	Removed v1.9.1 documentation, simplified version handling instructions
SETUP_SUMMARY.md	Removed v1.9.1 references, simplified documentation
.github/workflows/ica-test.yml	Added CI workflow for automated testing
.github/actions/setup-go/action.yml	Added reusable composite action to detect Go version from go.mod

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