feat: Installer action for binstall (#264)

# Motivation
We would like to replace `wasm-nm`, which is unmaintained, with
`ic-wasm`. The latter is installed with `binstall` in the `nns-dapp`
repo. We propose to follow the same pattern, the only difference being
where the binstall version is stored.

# Changes
- Add a GitHUb action that installs binstall.#263 

# Tests
The code is exercised heavily in `nns-dapp`, differing only in where
`BINSTALL_VERSION` is sourced from.

Co-authored-by: Max Murphy <max@winning.black>

.github/actions/install_binstall/action.yaml

@@ -0,0 +1,12 @@
+name: 'Installs binstall'
+description: |
+  Installs `cargo binstall` at the version specified in `bin/versions.bash`
+runs:
+  using: "composite"
+  steps:
+    - name: Install binstall
+      shell: bash
+      run: |
+        . bin/versions.bash
+        curl -L --proto '=https' --tlsv1.2 -sSf "https://github.com/cargo-bins/cargo-binstall/releases/download/v${BINSTALL_VERSION}/cargo-binstall-x86_64-unknown-linux-musl.tgz" | tar -xvzf -
+        ./cargo-binstall -y --force "cargo-binstall@$BINSTALL_VERSION"

bin/versions.bash

@@ -8,3 +8,4 @@ NNS_DAPP_RELEASE=proposal-121690
 DIDC_VERSION=2023-07-25
 QUILL_VERSION=0.4.0
 IDL2JSON_VERSION=0.8.5
+BINSTALL_VERSION=1.3.0