ci: Add `declare-program` tests (#2873)

.github/workflows/reusable-tests.yaml

@@ -412,6 +412,8 @@ jobs:
             path: tests/cashiers-check
           - cmd: cd tests/declare-id && anchor test --skip-lint && npx tsc --noEmit
             path: tests/declare-id
+          - cmd: cd tests/declare-program && anchor test --skip-lint
+            path: tests/declare-program
           - cmd: cd tests/typescript && anchor test --skip-lint && npx tsc --noEmit
             path: tests/typescript
           # zero-copy tests cause `/usr/bin/ld: final link failed: No space left on device`