Add documentation CI job

To ensure that 'make docs' functionality does not break.

.github/workflows/docs.yaml

@@ -0,0 +1,22 @@
+# Copyright 2024 Hewlett Packard Enterprise Development LP
+name: Build
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+jobs:
+  docs:
+    runs-on: ubuntu-24.04
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: '1.22.3' 
+      - uses: hashicorp/setup-terraform@v2
+        with:
+          terraform_version: 1.9.5
+      - run: make install-experimental
+      - run: go install github.com/hashicorp/terraform-plugin-docs/cmd/tfplugindocs@v0.19.4
+      - run: make docs 

Makefile

@@ -26,11 +26,16 @@ install-experimental:
 	go install -tags experimental  ./...
 
 docs:
-	echo -e ${PROVIDER_TF} > __docs.tf; \
-	tempfile=$$(mktemp); \
-	terraform providers schema -json | \
-	sed 's@github.com/hewlettpackard/hpegl-pcbe-terraform-resources@hpegl@g' > $$tempfile; \
-	tfplugindocs generate --providers-schema $$tempfile -provider-name hpegl;
+	printf "${PROVIDER_TF}" > __docs.tf; \
+	cat __docs.tf; \
+	tfconfig=$$(mktemp); \
+	sed "s@__HOME__@${HOME}@g" test/.terraformrc > $$tfconfig; \
+	cat $$tfconfig; \
+	schemafile=$$(mktemp); \
+	env TF_CLI_CONFIG_FILE=$$tfconfig terraform providers schema -json | \
+	sed 's@github.com/hewlettpackard/hpegl-pcbe-terraform-resources@hpegl@g' > $$schemafile; \
+	cat $$schemafile; \
+	tfplugindocs generate --providers-schema $$schemafile -provider-name hpegl;
 	rm __docs.tf
 
 test:
@@ -42,9 +47,9 @@ testacc:
 
 testacc-simulation:
 	go install -tags experimental,simulation ./cmd/...
-	tempfile=$$(mktemp); \
-	sed "s@__HOME__@${HOME}@g" test/.terraformrc > $$tempfile; \
-	env TF_ACC=1 env TF_CLI_CONFIG_FILE=$$tempfile \
+	tfconfig=$$(mktemp); \
+	sed "s@__HOME__@${HOME}@g" test/.terraformrc > $$tfconfig; \
+	env TF_ACC=1 env TF_CLI_CONFIG_FILE=$$tfconfig \
 		go test -v -tags simulation ./test/...
 
 lint: