Update crc version to 2.6.0.999

Reason behind it, we can push bundles to quay and tag the dev release
so that it doesn't affect the existing release bundles. Also choose
`999` as placeholder for that dev version since windows msi doesn't
allow `-dev` or `_dev`.

MSI error:
```
Legal version values should look like 'x.x.x.x' where x is an integer from 0 to 65534.
```

Makefile

@@ -3,7 +3,7 @@ SHELL := /bin/bash
 OPENSHIFT_VERSION ?= 4.10.22
 PODMAN_VERSION ?= 4.1.0
 BUNDLE_EXTENSION = crcbundle
-CRC_VERSION = 2.6.0
+CRC_VERSION = 2.6.0.999
 COMMIT_SHA=$(shell git rev-parse --short HEAD)
 MACOS_INSTALL_PATH = /Applications/Red Hat OpenShift Local.app/Contents/Resources
 CONTAINER_RUNTIME ?= podman