Bump julia-actions/setup-julia from 2 to 3

Bumps [julia-actions/setup-julia](https://github.com/julia-actions/setup-julia) from 2 to 3.
- [Release notes](https://github.com/julia-actions/setup-julia/releases)
- [Commits](julia-actions/setup-julia@v2...v3)

---
updated-dependencies:
- dependency-name: julia-actions/setup-julia
  dependency-version: '3'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/Deploy.yml

@@ -22,7 +22,7 @@ jobs:
     # packages such as PyPlot.
     # - run: pip install matplotlib
     - name: Install Julia
-      uses: julia-actions/setup-julia@v2
+      uses: julia-actions/setup-julia@v3
       with:
         version: '1' # Latest stable Julia release.
     # NOTE

.github/workflows/Preview.yml

@@ -20,7 +20,7 @@ jobs:
       with:
         python-version: '3.8'
     - name: Install Julia
-      uses: julia-actions/setup-julia@v2
+      uses: julia-actions/setup-julia@v3
       with:
         version: '1'
     - name: Fix prepath