Cirrus: Julia 1 on FreeBSD only

Author: dpo

.cirrus.yml

@@ -5,18 +5,7 @@ task:
         image_family: freebsd-13-3
       env:
         matrix:
-          - JULIA_VERSION: 1.6
           - JULIA_VERSION: 1
-    - name: musl Linux
-      container:
-        image: alpine:3.14
-      env:
-        - JULIA_VERSION: 1
-    - name: MacOS M1
-      macos_instance:
-        image: ghcr.io/cirruslabs/macos-monterey-base:latest
-      env:
-        - JULIA_VERSION: 1
   install_script: |
     URL="https://raw.githubusercontent.com/ararslan/CirrusCI.jl/master/bin/install.sh"
     set -x
@@ -32,7 +21,6 @@ task:
         sh -c "$(fetch ${URL} -o -)"
     fi
   build_script:
-    - julia --color=yes --project=. -e 'using Pkg; pkg = PackageSpec(url = "https://github.com/JuliaSmoothOptimizers/ShiftedProximalOperators.jl.git", rev = "master"); Pkg.add([pkg])'
     - cirrusjl build
   test_script:
     - cirrusjl test