node's fetch accepts signal, not timeout

Jira: IAM-1021

Author: bheesham

tf/actions/activateNewUsersInCIS.js

@@ -114,7 +114,7 @@ exports.onExecutePostLogin = async (event, api) => {
       headers: {
         "Content-Type": "application/json",
       },
-      timeout: AUTH0_TIMEOUT,
+      signal: AbortSignal.timeout(AUTH0_TIMEOUT),
       body: JSON.stringify({
         audience: event.secrets.personapi_audience,
         client_id: event.secrets.personapi_client_id,
@@ -315,7 +315,7 @@ exports.onExecutePostLogin = async (event, api) => {
       headers: {
         Authorization: `Bearer ${bearerToken}`,
       },
-      timeout: PERSONAPI_TIMEOUT,
+      signal: AbortSignal.timeout(PERSONAPI_TIMEOUT),
     };
     const url = `${event.secrets.personapi_url}/v2/user/user_id/${encodeURI(
       USER_ID
@@ -345,7 +345,7 @@ exports.onExecutePostLogin = async (event, api) => {
         "Content-Type": "application/json",
       },
       body: JSON.stringify(profile),
-      timeout: CHANGEAPI_TIMEOUT,
+      signal: AbortSignal.timeout(CHANGEAPI_TIMEOUT),
     };
     const url = `${event.secrets.changeapi_url}/v2/user?user_id=${encodeURI(
       USER_ID

tf/actions/gheGroups.js

@@ -114,7 +114,7 @@ exports.onExecutePostLogin = async (event, api) => {
       headers: {
         "Content-Type": "application/json",
       },
-      timeout: AUTH0_TIMEOUT,
+      signal: AbortSignal.timeout(AUTH0_TIMEOUT),
       body: JSON.stringify({
         audience: event.secrets.personapi_audience,
         client_id: event.secrets.personapi_read_profile_api_client_id,
@@ -151,7 +151,7 @@ exports.onExecutePostLogin = async (event, api) => {
         headers: {
           Authorization: `Bearer ${bearerToken}`,
         },
-        timeout: PERSONAPI_TIMEOUT,
+        signal: AbortSignal.timeout(PERSONAPI_TIMEOUT),
       };
 
       const url = `${event.secrets.personapi_url}/v2/user/user_id/${encodeURI(