Add user profiles

Signed-off-by: Prudhvi Godithi <pgodithi@amazon.com>

.github/user-profile-schema-validation.json

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+{
+    "type": "object",
+    "properties": {
+        "name": { "type": "string" },
+        "github_username": { "type": "string" },
+        "opensearch_slack_username": { "type": "string" },
+        "company": { "type": "string" },
+        "location": { "type": "string" },
+        "profile_image": {
+            "type": "string",
+            "pattern": "^\\.\\./assets/profile-images/.*\\.jpg$"
+        }
+    },
+    "required": [
+        "name",
+        "github_username",
+        "opensearch_slack_username",
+        "company",
+        "location"
+    ],
+    "additionalProperties": false
+}
+

.github/workflows/user-profile-validation.yml

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+name: Validate User Profiles
+
+on:
+  workflow_dispatch:
+  pull_request:
+    paths:
+      - 'user-profiles/*.json'
+
+jobs:
+  json-yaml-validate:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: json-yaml-validate
+        id: json-yaml-validate
+        uses: GrantBirki/json-yaml-validate@v3.2.1
+        with:
+          json_schema: '.github/user-profile-schema-validation.json'
+          comment: "true"

user-profiles/prudhvigodithi.json

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+{
+    "name": "Prudhvi Godithi",
+    "github_username": "prudhvigodithi",
+    "opensearch_slack_username": "prudhvi godithi",
+    "company": "Amazon",
+    "location": "Seattle WA",
+    "profile_image": "../assets/profile-images/prudhvigodithi.jpg"
+}