Fix CI workflow failures by updating Gleam version to 1.11.0

[Copilot]

Problem

The CI workflows were failing because the gleeunit testing framework requires Gleam version 1.11.0 or higher, but the workflows were configured to use older versions:

• test.yml was using Gleam 1.9.1
• deploy.yml was using Gleam 1.4.1

This caused dependency resolution failures when gleam deps download tried to install gleeunit >= 1.0.0.

Solution

Updated both CI workflow files to use Gleam 1.11.0:

.github/workflows/test.yml:

• Updated gleam-version from "1.9.1" to "1.11.0"

.github/workflows/deploy.yml:

• Updated gleam-version from "1.4.1" to "1.11.0"
• Updated otp-version from "26.0" to "27.1.2" for consistency

Testing

These changes ensure that:

• ✅ gleeunit dependency requirements are satisfied
• ✅ Both workflows use consistent Gleam and OTP versions
• ✅ CI builds and tests can proceed without version conflicts

The fix is minimal and targeted, only updating the version specifications needed to resolve the dependency issue.

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