fix(mfe): avoid crashing if unsupported mfe version found (#9432)
### Description
We should avoid crashing if we encounter a version of MFE config that we
don't currently support.
### Testing Instructions
Added unit test. Quick spot check by changing version in an example to
an unsupported version:
```
[1 olszewski@chriss-mbp] /Users/olszewski/code/ $ turbo_dev --skip-infer micro-frontends-example-web#dev --dry=json > /dev/null
turbo 2.2.4-canary.10
WARNING Ignoring /Users/olszewski/code/packages/micro-frontends-example-site-config/micro-frontends.jsonc: Unsupported micro-frontends configuration version: 2. Supported versions: ["1"]
```
