CompatHelper: bump compat for Symbolics in [weakdeps] to 7 for package DifferentiationInterface, (keep existing compat) (#909)

Author: github-actions[bot]

.github/workflows/Test.yml

@@ -40,14 +40,15 @@ jobs:
           - Back/ChainRules
           # - Back/Diffractor
           - Back/Enzyme
+          - Back/FastDifferentiation
           - Back/FiniteDiff
           - Back/FiniteDifferences
           - Back/ForwardDiff
           - Back/GTPSA
           - Back/Mooncake
           - Back/PolyesterForwardDiff
           - Back/ReverseDiff
-          - Back/SymbolicBackends
+          - Back/Symbolics
           - Back/Tracker
           - Back/Zygote
           - Down/Flux

DifferentiationInterface/Project.toml

@@ -41,11 +41,7 @@ DifferentiationInterfaceForwardDiffExt = ["ForwardDiff", "DiffResults"]
 DifferentiationInterfaceGPUArraysCoreExt = "GPUArraysCore"
 DifferentiationInterfaceGTPSAExt = "GTPSA"
 DifferentiationInterfaceMooncakeExt = "Mooncake"
-DifferentiationInterfacePolyesterForwardDiffExt = [
-    "PolyesterForwardDiff",
-    "ForwardDiff",
-    "DiffResults",
-]
+DifferentiationInterfacePolyesterForwardDiffExt = ["PolyesterForwardDiff", "ForwardDiff", "DiffResults"]
 DifferentiationInterfaceReverseDiffExt = ["ReverseDiff", "DiffResults"]
 DifferentiationInterfaceSparseArraysExt = "SparseArrays"
 DifferentiationInterfaceSparseConnectivityTracerExt = "SparseConnectivityTracer"
@@ -76,7 +72,7 @@ SparseArrays = "1"
 SparseConnectivityTracer = "0.6.14, 1"
 SparseMatrixColorings = "0.4.9"
 StaticArrays = "1.9.7"
-Symbolics = "5.27.1, 6"
+Symbolics = "5.27.1, 6, 7"
 Tracker = "0.2.33"
 Zygote = "0.6.69, 0.7"
 julia = "1.10"