fix: Handle empty array in Prisma OR conditions for Prisma 6.16 (calcom#24638)

After upgrading to Prisma 6.16.0, empty arrays in 'in' clauses within OR
conditions are now optimized to return no results. This caused integration
tests to fail when querying memberships with empty memberUserIds arrays.

Changes:
- Dynamically build OR conditions to exclude empty 'in' arrays
- Simplify getAllAdminMemberships to use 'in' instead of OR for roles
- Fixes retrieveScopedAccessibleUsers and getAccessibleUsers queries

Fixes integration test failures:
- apps/api/v1/test/lib/utils/retrieveScopedAccessibleUsers.integration-test.ts
- apps/api/v1/test/lib/bookings/[id]/_patch.integration-test.ts

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>

Author: anikdhabal

apps/api/v1/lib/utils/retrieveScopedAccessibleUsers.ts

@@ -27,7 +27,7 @@ const getAllAdminMemberships = async (userId: number) => {
     where: {
       userId: userId,
       accepted: true,
-      OR: [{ role: MembershipRole.OWNER }, { role: MembershipRole.ADMIN }],
+      role: { in: [MembershipRole.OWNER, MembershipRole.ADMIN] },
     },
     select: {
       team: {
@@ -56,16 +56,19 @@ export const getAccessibleUsers = async ({
   memberUserIds,
   adminUserId,
 }: AccessibleUsersType): Promise<number[]> => {
+  const orConditions = [];
+  if (memberUserIds.length > 0) {
+    orConditions.push({ userId: { in: memberUserIds } });
+  }
+  orConditions.push({ userId: adminUserId, role: { in: [MembershipRole.OWNER, MembershipRole.ADMIN] } });
+
   const memberships = await prisma.membership.findMany({
     where: {
       team: {
         isOrganization: true,
       },
       accepted: true,
-      OR: [
-        { userId: { in: memberUserIds } },
-        { userId: adminUserId, role: { in: [MembershipRole.OWNER, MembershipRole.ADMIN] } },
-      ],
+      OR: orConditions,
     },
     select: {
       userId: true,