Bump julia-actions/julia-downgrade-compat from 1 to 2

.github/dependabot.yml

@@ -10,6 +10,3 @@ updates:
       all-github-actions:
         patterns:
           - "*"
-    ignore:
-      - dependency-name: "julia-actions/julia-downgrade-compat"
-        versions: [ ">=2.0.0" ]

.github/workflows/Downgrade.yml

@@ -36,19 +36,20 @@ jobs:
           arch: ${{ matrix.arch }}
       - run: julia -e 'using InteractiveUtils; versioninfo(verbose=true)'
       - uses: julia-actions/cache@v2
-      - uses: julia-actions/julia-downgrade-compat@v1
+      - uses: julia-actions/julia-downgrade-compat@v2
         with:
           skip: LinearAlgebra,SparseArrays,Statistics,Test
           projects: ., test
-      - uses: julia-actions/julia-buildpkg@v1
-        env:
-          PYTHON: ""
-          GKSwstype: "100" # for Plots/GR
-      - name: Run tests without coverage
-        uses: julia-actions/julia-runtest@v1
-        with:
-          coverage: false
-        env:
-          PYTHON: ""
-          GKSwstype: "100" # for Plots/GR
-          POSITIVEINTEGRATORS_DOWNGRADE_CI: "true"
+          mode: forcedeps
+      # We run the tests manually instead of using julia-action/julia-builpkg and julia-action/julia-runtest or `Pkg.test`
+      # because otherwise the downgraded Manifest.toml is not used in the tests under julia <v1.12
+      # see also https://github.com/julia-actions/julia-downgrade-compat/blob/00f940b7be2b50389571ed016d603be561649103/README.md#L89
+      - name: Run tests
+        run: |
+          julia --project=test --color=yes -e '
+            import Pkg
+            Pkg.develop(Pkg.PackageSpec(path=pwd()))
+            Pkg.instantiate()
+            Pkg.status(; mode = Pkg.PKGMODE_MANIFEST)
+            include("test/runtests.jl")
+          '

Project.toml

@@ -29,12 +29,12 @@ JuMP = "1.28"
 LinearAlgebra = "1"
 LinearSolve = "3.54"
 MuladdMacro = "0.2.4"
-OrdinaryDiffEqCore = "3"
+OrdinaryDiffEqCore = "3.0.1"
 RecipesBase = "1.3.4"
 Reexport = "1.2.2"
 SciMLBase = "2.128"
 SparseArrays = "1"
-StaticArrays = "1.9.7"
+StaticArrays = "1.9.8"
 Statistics = "1"
 SymbolicIndexingInterface = "0.3.43"
 julia = "1.10"

test/Project.toml

@@ -35,11 +35,11 @@ OrdinaryDiffEqRosenbrock = "1.22"
 OrdinaryDiffEqSDIRK = "1.11"
 OrdinaryDiffEqTsit5 = "1.9"
 OrdinaryDiffEqVerner = "1.10"
-Plots = "1.33"
+Plots = "1.38.9"
 RecipesBase = "1.3.4"
 RecursiveFactorization = "0.2.26"
 SparseArrays = "1"
-StaticArrays = "1.9.7"
+StaticArrays = "1.9.8"
 Statistics = "1"
 Test = "1"
 Unitful = "1.21"