Drop 1.6 and require DiffEqBase 6.130

Author: avik-pal

.github/workflows/CI.yml

@@ -15,7 +15,6 @@ jobs:
           - Core
         version:
           - '1'
-          - '1.6'
     steps:
       - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1

Project.toml

@@ -28,7 +28,7 @@ UnPack = "3a884ed6-31ef-47d7-9d2a-63182c4928ed"
 ADTypes = "0.2"
 ArrayInterface = "6.0.24, 7"
 ConcreteStructs = "0.2"
-DiffEqBase = "6"
+DiffEqBase = "6.130"
 EnumX = "1"
 Enzyme = "0.11"
 FiniteDiff = "2"
@@ -44,7 +44,7 @@ SparseDiffTools = "2.6"
 StaticArraysCore = "1.4"
 UnPack = "1.0"
 Zygote = "0.6"
-julia = "1.6"
+julia = "1.9"
 
 [extras]
 BenchmarkTools = "6e4b80f9-dd63-53aa-95a3-0cdb28fa8baf"