Fix CRD reference docs not regenerating for v1beta2 API types

The docs/book/Makefile API_DIRS only tracked v1beta1 directories for
the src/crd/index.md rebuild trigger. Changes to v1beta2 types (ROSA
CRDs, core v1beta2) were silently ignored, leaving the CRD reference
docs stale.

Add api/v1beta2, exp/api/v1beta2, controlplane/rosa/api/v1beta2, and
bootstrap/eks/api/v1beta2 to API_DIRS so make generate correctly
detects changes and regenerates the docs.

Signed-off-by: michaelryanmcneill <michael@michaelryanmcneill.com>

Author: michaelryanmcneill

docs/book/Makefile

@@ -25,7 +25,7 @@ GENCRDAPIREFERENCEDOCS_SRCS := $(call rwildcard,.,gen-crd-api-reference-docs/*.*
 CRD_DOCS := src/crd/cluster-api-aws.md src/crd/experimental.md src/crd/eks-control-plane.md
 BOOK_SRCS :=  $(filter-out $(CRD_DOCS), $(call rwildcard,.,*.*))
 
-API_DIRS := cmd/clusterawsadm/api/bootstrap/v1beta1 api/v1beta1 exp/api/v1beta1 controlplane/eks/api/v1beta1 bootstrap/eks/api/v1beta1 iam/api/v1beta1
+API_DIRS := cmd/clusterawsadm/api/bootstrap/v1beta1 api/v1beta1 api/v1beta2 exp/api/v1beta1 exp/api/v1beta2 controlplane/eks/api/v1beta1 controlplane/rosa/api/v1beta2 bootstrap/eks/api/v1beta1 bootstrap/eks/api/v1beta2 iam/api/v1beta1
 API_SRCS := $(foreach dir, $(API_DIRS), $(call rwildcard,../../$(dir),*.go))
 GENERATED_SRCS := $(foreach dir, $(API_DIRS),../../$(dir)/zz_generated.deepcopy.go ../../$(dir)/zz_generated.conversion.go ../../$(dir)/zz_generated.defaults.go)
 API_FILTERED_SRCS := $(filter-out $(GENERATED_SRCS), $(API_SRCS))