chore: small nits

Signed-off-by: blam <ben@blam.sh>

.changeset/tricky-months-hug.md

@@ -5,4 +5,4 @@
 '@backstage/plugin-auth-node': patch
 ---
 
-Fix issue with `providerInfo` not being set properly for some auth providers, by making `providerInfo` an explicit optional return from `authenticate`
+Fix issue with `providerInfo` not being set properly for some proxy providers, by making `providerInfo` an explicit optional return from `authenticate`

plugins/auth-backend-module-oauth2-proxy-provider/api-report.md

@@ -18,7 +18,7 @@ export const OAUTH2_PROXY_JWT_HEADER = 'X-OAUTH2-PROXY-ID-TOKEN';
 
 // @public (undocumented)
 export const oauth2ProxyAuthenticator: ProxyAuthenticator<
-  unknown,
+  Promise<void>,
   OAuth2ProxyResult,
   {
     accessToken: string;

plugins/auth-backend-module-oauth2-proxy-provider/src/authenticator.ts

@@ -31,11 +31,7 @@ import { OAuth2ProxyResult } from './types';
 export const OAUTH2_PROXY_JWT_HEADER = 'X-OAUTH2-PROXY-ID-TOKEN';
 
 /** @public */
-export const oauth2ProxyAuthenticator = createProxyAuthenticator<
-  unknown,
-  OAuth2ProxyResult,
-  { accessToken: string }
->({
+export const oauth2ProxyAuthenticator = createProxyAuthenticator({
   defaultProfileTransform: async (result: OAuth2ProxyResult) => {
     return {
       profile: {