Bump julia-actions/cache from 2 to 3 (#281)

* CompatHelper: bump compat for Trixi to 0.16 for package LibTrixi.jl, (keep existing compat)

* CompatHelper: bump compat for Trixi to 0.16 for package test, (keep existing compat)

* Bump julia-actions/cache from 2 to 3

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

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

Signed-off-by: dependabot[bot] <support@github.com>

* CompatHelper: bump compat for SciMLBase to 3 for package LibTrixi.jl, (keep existing compat)

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: CompatHelper Julia <compathelper_noreply@julialang.org>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Benedict Geihe <bgeihe@uni-koeln.de>

Author: 3 people

.github/workflows/ci.yml

@@ -55,7 +55,7 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Enable Julia cache
-        uses: julia-actions/cache@v2
+        uses: julia-actions/cache@v3
 
       - name: Enable t8code cache
         id: cache-t8code

LibTrixi.jl/Project.toml

@@ -12,6 +12,6 @@ Trixi = "a7f1ee26-1774-49b1-8366-f1abc58fbfcb"
 [compat]
 MPI = "0.20.13"
 Pkg = "1.8"
-SciMLBase = "2.33.0"
-Trixi = "0.15"
+SciMLBase = "2.33.0, 3"
+Trixi = "0.15, 0.16"
 julia = "1.8"

LibTrixi.jl/test/Project.toml

@@ -5,4 +5,4 @@ Trixi = "a7f1ee26-1774-49b1-8366-f1abc58fbfcb"
 
 [compat]
 OrdinaryDiffEqLowStorageRK = "1"
-Trixi = "0.15"
+Trixi = "0.15, 0.16"