give the same treatment to catalog-backend too

Signed-off-by: Fredrik Adelöw <freben@gmail.com>

.changeset/clever-singers-search.md

@@ -0,0 +1,5 @@
+---
+'@backstage/integration': patch
+---
+
+Narrow the types returned by the request option functions, to only the specifics that they actually do return. The reason for this change is that a full `RequestInit` is unfortunate to return because it's different between `cross-fetch` and `node-fetch`.

.changeset/fresh-pumas-collect.md

@@ -3,6 +3,7 @@
 '@backstage/plugin-auth-backend': patch
 '@backstage/plugin-badges-backend': patch
 '@backstage/plugin-bitrise': patch
+'@backstage/plugin-catalog-backend': patch
 '@backstage/plugin-catalog-backend-module-msgraph': patch
 '@backstage/plugin-code-coverage-backend': patch
 '@backstage/plugin-fossa': patch