Wrap auth_db_pass in quotes to avoid escape chars (#2067)

## 🎫 Ticket

https://jira.cms.gov/browse/DPC-xxx

## 🛠 Changes

(What was added, updated, or removed in this PR.)

## ℹ️ Context for reviewers

(Background context, more in-depth details of the implementation, and
anything else you'd like to call out or ask reviewers.)

## ✅ Acceptance Validation

(How were the changes verified? Did you fully test the acceptance
criteria in the ticket? Provide reproducible testing instructions and
screenshots if applicable.)

## 🔒 Security Implications

- [ ] This PR adds a new software dependency or dependencies.
- [ ] This PR modifies or invalidates one or more of our security
controls.
- [ ] This PR stores or transmits data that was not stored or
transmitted before.
- [ ] This PR requires additional review of its security implications
for other reasons.

If any security implications apply, add Jason Ashbaugh (GitHub username:
StewGoin) as a reviewer and do not merge this PR without his approval.

dpc-api/src/main/resources/application.yml

@@ -60,8 +60,8 @@ publicURL: ${PUBLIC_URL:-"http://localhost:3002"}
 authdb:
   driverClass: org.postgresql.Driver
   url: ${AUTH_DB_URL:-"jdbc:postgresql://db:5432/dpc_auth"}
-  user: ${AUTH_DB_USER:-postgres}
-  password: ${AUTH_DB_PASS:-dpc-safe}
+  user: "${AUTH_DB_USER:-postgres}"
+  password: "${AUTH_DB_PASS:-dpc-safe}"
   initialSize: 5
   minSize: 5
   maxSize: 10