CompatHelper: bump compat for Symbolics to 7, (keep existing compat)

Author: CompatHelper Julia

Project.toml

@@ -1,7 +1,7 @@
 name = "QuantumSymbolics"
 uuid = "efa7fd63-0460-4890-beb7-be1bbdfbaeae"
-authors = ["QuantumSymbolics.jl contributors"]
 version = "0.4.12-dev"
+authors = ["QuantumSymbolics.jl contributors"]
 
 [deps]
 Latexify = "23fbe1c1-3f47-55db-b15f-69d7ec21a316"
@@ -37,6 +37,6 @@ QuantumInterface = "0.4.1"
 QuantumOpticsBase = "0.5.6"
 QuantumToolbox = "0.34.0"
 SymbolicUtils = "3.13"
-Symbolics = "6"
+Symbolics = "6, 7"
 TermInterface = "2"
 julia = "1.10"