Version 2.0.6 prep

Bumps [d3-selection](https://github.com/d3/d3-selection) from 1.3.2 to 3.0.0.
- [Release notes](https://github.com/d3/d3-selection/releases)
- [Commits](https://github.com/d3/d3-selection/compare/v1.3.2...v3.0.0)

---
updated-dependencies:
- dependency-name: d3-selection
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

package.json

@@ -1,6 +1,6 @@
 {
   "name": "openmct",
-  "version": "2.1.0-SNAPSHOT",
+  "version": "2.0.6-SNAPSHOT",
   "description": "The Open MCT core platform",
   "devDependencies": {
     "@babel/eslint-parser": "7.18.2",