Fix latest/latest/latest failure (#1377)

**Context:** Check CPL latest/latest/latest is failing because the
device toml file is not found when instantiating an OQD device. This
happened because Check CPL installs catalyst using `make catalyst`, not
`make all`, and the oqd build target was not added as a dependency of
`make catalyst`.

**Description of the Change:** Add `oqd` to dependencies of `make
catalyst`. Also, I've made an opportunistic fix to an incorrect GitHub
action title: "Download PennyLane-Lightning (**latest**)" where it
should be "Download PennyLane-Lightning (**release-candidate**)"

.github/workflows/check-pl-compat.yaml

@@ -119,7 +119,7 @@ jobs:
         path: lightning_build
         fetch-depth: 0
 
-    - name: Download PennyLane-Lightning (latest)
+    - name: Download PennyLane-Lightning (release-candidate)
       if: ${{ inputs.lightning == 'release-candidate' }}
       uses: actions/checkout@v4
       with:

Makefile

@@ -92,7 +92,7 @@ help:
 
 .PHONY: all catalyst
 all: runtime oqc oqd mlir frontend
-catalyst: runtime dialects plugin frontend
+catalyst: runtime dialects plugin oqd frontend
 
 .PHONY: frontend
 frontend: