bump julia version

Author: brucala

.github/workflows/docs.yml

@@ -15,7 +15,7 @@ jobs:
       - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@v1
         with:
-          version: '1.6'
+          version: '1.9'
       - name: Install dependencies
         # run: julia --project=docs/ -e 'using Pkg; Pkg.develop(PackageSpec(path=pwd())); Pkg.instantiate()'
         # use forked DemoCards.jl while this PR isn't merged and tagged: https://github.com/JuliaDocs/DemoCards.jl/pull/157

.github/workflows/test.yml

@@ -9,7 +9,7 @@ jobs:
       matrix:
         julia-version:
           - '1'  # latest release
-          - '1.6' # LTS
+          - '1.9' # Required by extensions
     steps:
       - uses: actions/checkout@v3
       - uses: julia-actions/setup-julia@latest

Project.toml

@@ -26,4 +26,4 @@ JSON = "0.21"
 MultilineStrings = "0.1.1"
 NetworkLayout = "0.4.7"
 Tables = "1"
-julia = "1.6"
+julia = "1.9"