Abandon 1.7, update checkout (#80)

* Abandon 1.7, update checkout

* fix actions

.github/workflows/Documentation.yml

@@ -16,7 +16,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: '1'

.github/workflows/ci.yml

@@ -23,10 +23,10 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        version: ['1.7', '1', 'nightly']
+        version: ['1', 'nightly']
         os: [ubuntu-latest, windows-latest, macOS-latest]
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 #     - name: "Set up Julia"
       - uses: julia-actions/setup-julia@latest
         with:

.github/workflows/clean.yml

@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes

README.md

@@ -135,7 +135,7 @@ ellipsoids/spheres, cuboids/cubes, gaussians, cylinders, cones.
 
 ### Compatibility
 
-Tested with Julia ≥ 1.7.
+Tested with Julia ≥ 1.9.
 
 <!-- URLs -->
 [action-img]: https://github.com/JuliaImageRecon/ImagePhantoms.jl/workflows/CI/badge.svg