fix: update sharding configuration to support 20 shards for Playwright tests (Github Actions free plan limit)

Refs: #13

Author: idembele70

.github/workflows/playwright.yml

@@ -11,8 +11,8 @@ jobs:
     strategy:
         fail-fast: false
         matrix:
-          shardIndex: [1,2,3,4,5,6,7,8,9,10]
-          shardTotal: [10]
+          shardIndex: [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20]
+          shardTotal: [20]
     steps:
     - uses: actions/checkout@v5
     - uses: actions/setup-node@v5