Add composite actions dir

.github/actions/install/action.yaml

@@ -0,0 +1,31 @@
+name: Install uv, rust, and python
+description: Install uv, rust, and python
+runs:
+  using: composite
+  steps:
+  - name: Install rust
+    shell: bash
+    run: |
+      curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+      CARGO_BIN="$HOME/.cargo/bin"
+      echo 'export PATH="$CARGO_BIN:$PATH"' >> $HOME/.bashrc
+      echo "$CARGO_BIN" >> $GITHUB_PATH
+
+  - name: Install uv
+    shell: bash
+    run: |
+      curl -LsSf https://astral.sh/uv/install.sh | sh
+      UV_BIN="$HOME/.local/bin"
+      echo 'export PATH="$UV_BIN:$PATH"' >> $HOME/.bashrc
+      echo "$UV_BIN" >> $GITHUB_PATH
+
+  - name: Source .bashrc
+    shell: bash
+    run: |
+      source $HOME/.bashrc
+
+  - name: Install python (version 3.9)
+    shell: bash
+    run: |
+      uv python install 3.9
+      uv python pin 3.9