Increase minimum julia version to 1.9

Author: marcom

.github/workflows/CI.yml

@@ -18,7 +18,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.7'
+          - '1.9'
           - '1'
         os:
           - ubuntu-latest

Project.toml

@@ -19,7 +19,7 @@ LinearPartition_jll = "= 1.0.0"
 LinearSampling_jll = "= 1.0.0"
 LinearTurboFold_jll = "= 0.0.1"
 Unitful = "1.11"
-julia = "1.7"
+julia = "1.9"
 
 [extras]
 Aqua = "4c88cf16-eb10-579e-8560-4a9242c79595"