bump Julia compat to 1.9

Author: palday

.github/workflows/ci.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.6'
+          - '1.9'
           - '1' # automatically expands to the latest stable 1.x release of Julia
           - 'nightly'
         os:

Project.toml

@@ -22,7 +22,7 @@ ArrowTypes = "2.2"
 Parsers = "0.3, 1, 2"
 PrecompileTools = "1"
 StructTypes = "1.10"
-julia = "1.6"
+julia = "1.9"
 
 [extras]
 Arrow = "69666777-d1a9-59fb-9406-91d4454c9d45"