chore(deps): update mysql docker tag to v9.3 (#501)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| mysql | service | minor | `9.2` -> `9.3` |
| mysql |  | minor | `9.2` -> `9.3` |

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Author: renovate[bot]

.github/workflows/elixir.yml

@@ -189,7 +189,7 @@ jobs:
           POSTGRES_PASSWORD: postgres
           POSTGRES_DB: opentelemetry_ecto_test
       mysql:
-        image: mysql:9.2
+        image: mysql:9.3
         env:
           MYSQL_USER: mysql
           MYSQL_PASSWORD: mysql

instrumentation/opentelemetry_ecto/docker-compose.yml

@@ -18,7 +18,7 @@ services:
       - 5433:5432
 
   mysql:
-    image: mysql:9.2
+    image: mysql:9.3
     environment:
       - MYSQL_USER=mysql
       - MYSQL_PASSWORD=mysql