Bump julia-actions/setup-julia from 1 to 2 (#54)

Bumps [julia-actions/setup-julia](https://github.com/julia-actions/setup-julia) from 1 to 2.
- [Release notes](https://github.com/julia-actions/setup-julia/releases)
- [Commits](julia-actions/setup-julia@v1...v2)

---
updated-dependencies:
- dependency-name: julia-actions/setup-julia
  dependency-version: '2'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Simone Carlo Surace <51025924+simsurace@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -23,8 +23,8 @@ jobs:
             os: ubuntu-latest
             arch: x64
     steps:
+      - uses: julia-actions/setup-julia@v2
       - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
@@ -48,8 +48,8 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
+      - uses: julia-actions/setup-julia@v2
       - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v1
         with:
           version: '1'
       - shell: bash

.github/workflows/downgrade.yml

@@ -17,8 +17,8 @@ jobs:
       matrix:
         version: ['1.10']
     steps:
+      - uses: julia-actions/setup-julia@v2
       - uses: actions/checkout@v6
-      - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
       - uses: julia-actions/julia-downgrade-compat@v2