CI fixes

- Splits up test into fmt, lint and test
- Fixes bug in build-packages.sh
- Minor README.md fixes

ci/steps/fmt.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+main() {
+  cd "$(dirname "$0")/../.."
+
+  yarn
+
+  git submodule update --init
+  # We do not `yarn vscode` to make test.sh faster.
+  # If the patch fails to apply, then it's likely already applied
+  yarn vscode:patch &> /dev/null || true
+
+  yarn fmt
+}
+
+main "$@"

ci/steps/lint.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+main() {
+  cd "$(dirname "$0")/../.."
+
+  yarn
+
+  git submodule update --init
+  # We do not `yarn vscode` to make test.sh faster.
+  # If the patch fails to apply, then it's likely already applied
+  yarn vscode:patch &> /dev/null || true
+
+  yarn lint
+}
+
+main "$@"

ci/steps/test.sh

@@ -11,7 +11,7 @@ main() {
   # If the patch fails to apply, then it's likely already applied
   yarn vscode:patch &> /dev/null || true
 
-  yarn ci
+  yarn test
 }
 
 main "$@"