CI improvements (#36)

* test on Julia `pre`

* test on x86

* coverage CI, with Codecov

Author: nsajko

.github/workflows/CI.yml

@@ -25,10 +25,12 @@ jobs:
         version:
           - '1.10'
           - '1.11'
+          - 'pre'
         os:
           - ubuntu-latest
         arch:
           - x64
+          - x86
     steps:
       - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
@@ -38,3 +40,9 @@ jobs:
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1
       - uses: julia-actions/julia-runtest@v1
+      - uses: julia-actions/julia-processcoverage@v1
+      - uses: codecov/codecov-action@v5
+        with:
+          files: lcov.info
+          token: ${{ secrets.CODECOV_TOKEN }}
+          fail_ci_if_error: false

README.md

@@ -3,6 +3,7 @@
 [![Build Status](https://github.com/JuliaArrays/ZeroDimensionalArrays.jl/actions/workflows/CI.yml/badge.svg?branch=main)](https://github.com/JuliaArrays/ZeroDimensionalArrays.jl/actions/workflows/CI.yml?query=branch%3Amain)
 [![Package version](https://juliahub.com/docs/General/ZeroDimensionalArrays/stable/version.svg)](https://juliahub.com/ui/Packages/General/ZeroDimensionalArrays)
 [![Package dependencies](https://juliahub.com/docs/General/ZeroDimensionalArrays/stable/deps.svg)](https://juliahub.com/ui/Packages/General/ZeroDimensionalArrays?t=2)
+[![Coverage](https://codecov.io/gh/JuliaArrays/ZeroDimensionalArrays.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/JuliaArrays/ZeroDimensionalArrays.jl)
 [![PkgEval](https://JuliaCI.github.io/NanosoldierReports/pkgeval_badges/Z/ZeroDimensionalArrays.svg)](https://JuliaCI.github.io/NanosoldierReports/pkgeval_badges/Z/ZeroDimensionalArrays.html)
 [![Aqua](https://raw.githubusercontent.com/JuliaTesting/Aqua.jl/master/badge.svg)](https://github.com/JuliaTesting/Aqua.jl)