ci: fix cirrus job

.cirrus.yml

@@ -6,14 +6,13 @@ task:
     - chmod +x "$PWD/bin/7z"
     - brew install 7zip
     - mkdir -p "$HOME/bin"
-    - curl https://rtx.pub/rtx-latest-macos-arm64 > "$HOME/bin/rtx"
-    - chmod +x "$HOME/bin/rtx"
-    - echo "PATH=$HOME/bin:$PATH" >> $CIRRUS_ENV
-    - echo "RTX_TRUSTED_CONFIG_PATHS="$PWD/.rtx.toml"
-    - echo "RTX_YES="yes"
+    - curl https://mise.jdx.dev/install.sh | sh
+    - echo "PATH=$HOME/.local/share/mise/bin:$PATH" >> $CIRRUS_ENV
+    - echo "PATH=$HOME/.local/share/mise/shims:$PATH" >> $CIRRUS_ENV
+    - echo "MISE_TRUSTED_CONFIG_PATHS="$PWD/.mise.toml"
+    - echo "MISE_YES="yes"
     - export PATH=$HOME/bin:$PATH
-    - rtx install
-    - for path in $(rtx bin-paths); do export PATH="$path:$PATH"; done
+    - mise install
     - mix local.hex --force
     - mix local.rebar --force
     - mix deps.get