Config validation clean up

Signed-off-by: Andre Wanlin <67169551+awanlin@users.noreply.github.com>

.changeset/popular-fans-camp.md

@@ -0,0 +1,5 @@
+---
+'@backstage/plugin-auth-backend': patch
+---
+
+Updated config schema to match what was being used in code

app-config.yaml

@@ -211,7 +211,7 @@ integrations:
   #    clientEmail: 'example@example.com'
   #    privateKey: ${GCS_PRIVATE_KEY}
   awsS3:
-    - host: amazonaws.com
+    - endpoint: ${AWS_S3_ENDPOINT}
       accessKeyId: ${AWS_ACCESS_KEY_ID}
       secretAccessKey: ${AWS_SECRET_ACCESS_KEY}
 
@@ -352,8 +352,6 @@ auth:
         metadataUrl: ${AUTH_OIDC_METADATA_URL}
         clientId: ${AUTH_OIDC_CLIENT_ID}
         clientSecret: ${AUTH_OIDC_CLIENT_SECRET}
-        authorizationUrl: ${AUTH_OIDC_AUTH_URL}
-        tokenUrl: ${AUTH_OIDC_TOKEN_URL}
         tokenEndpointAuthMethod: ${AUTH_OIDC_TOKEN_ENDPOINT_AUTH_METHOD} # default='client_secret_basic'
         tokenSignedResponseAlg: ${AUTH_OIDC_TOKEN_SIGNED_RESPONSE_ALG} # default='RS256'
         scope: ${AUTH_OIDC_SCOPE} # default='openid profile email'
@@ -434,8 +432,10 @@ costInsights:
       kind: 'PINTS_OF_ICE_CREAM'
       unit: 'ice cream pint'
       rate: 5.5
-pagerduty:
+
+pagerDuty:
   eventsBaseUrl: 'https://events.pagerduty.com/v2'
+
 jenkins:
   instances:
     - name: default

plugins/auth-backend/config.d.ts

@@ -152,6 +152,8 @@ export interface Config {
           clientSecret: string;
           callbackUrl?: string;
           metadataUrl: string;
+          tokenEndpointAuthMethod?: string;
+          tokenSignedResponseAlg?: string;
           scope?: string;
           prompt?: string;
         };