Move install-bundle script to dev-scripts directory (#1745)

Related tiny-pilot/tinypilot-pro#1214

Based on our efforts to mitigate privilege escalation, the
`scripts/install-bundle` script was identified as being both
tinypilot-writeable and requiring root privileges. This PR moves the
script to the `dev-scripts/` directory.

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CONTRIBUTING.md

@@ -178,7 +178,7 @@ curl \
  --silent \
  --show-error \
  --location \
- https://raw.githubusercontent.com/tiny-pilot/tinypilot/master/scripts/install-bundle | \
+ https://raw.githubusercontent.com/tiny-pilot/tinypilot/master/dev-scripts/install-bundle | \
  sudo bash -s -- \
  url-to-bundle-file # replace this line with your bundle URL
 ```

dev-scripts/install-from-source

@@ -45,4 +45,4 @@ mv "${LATEST_DEBIAN_PACKAGE}" ./bundler/bundle/
 LATEST_INSTALL_BUNDLE="${PWD}/$(ls -t bundler/dist/tinypilot*.tgz | head -n 1)"
 readonly LATEST_INSTALL_BUNDLE
 
-sudo ./scripts/install-bundle "${LATEST_INSTALL_BUNDLE}"
+sudo ./dev-scripts/install-bundle "${LATEST_INSTALL_BUNDLE}"