Bump @trimbleinc/modus-bootstrap from 1.6.3 to 1.6.4

Bumps [@trimbleinc/modus-bootstrap](https://modus-bootstrap.trimble.com/) from 1.6.3 to 1.6.4.

---
updated-dependencies:
- dependency-name: "@trimbleinc/modus-bootstrap"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -33,7 +33,7 @@
   },
   "devDependencies": {
     "@fullhuman/postcss-purgecss": "6.0.0",
-    "@trimbleinc/modus-bootstrap": "1.6.3",
+    "@trimbleinc/modus-bootstrap": "1.6.4",
     "autoprefixer": "10.4.19",
     "clipboard": "2.0.11",
     "eslint": "8.57.0",