Add issue template specific for PPL commands and queries (opensearch-project#3962)

* Add issue template specific for PPL commands and queries

Signed-off-by: Anas Alkouz <aalkouz@amazon.com>

* Add section for Dataset/schema information, add reminders for the customers to remove any sensitive datas

Signed-off-by: Anas Alkouz <aalkouz@amazon.com>

---------

Signed-off-by: Anas Alkouz <aalkouz@amazon.com>

Author: anasalkouz

.github/ISSUE_TEMPLATE/ppl_bug_report.md

@@ -0,0 +1,71 @@
+---
+name: 🐛 PPL Bug Report
+about: Report a bug or unexpected behavior in PPL
+title: '[BUG] Brief description of the issue'
+labels: 'bug, untriaged, PPL'
+assignees: ''
+---
+## Query Information
+**PPL Command/Query:**
+```ppl
+# Paste your PPL command or query here
+# Remember to sanitize any sensitive fields or values
+```
+**Expected Result:**
+<!-- Describe what you expected to happen -->
+
+**Actual Result:**
+<!-- Describe what actually happened, including any error messages -->
+<!-- Make sure to redact any sensitive information in error messages -->
+
+## Dataset Information
+**Dataset/Schema Type**
+- [x] OpenTelemetry (OTEL)
+- [ ] Simple Schema for Observability (SS4O)
+- [ ] Open Cybersecurity Schema Framework (OCSF)
+- [ ] Custom (details below)
+
+**Index Mapping**
+```json
+{
+  "mappings": {
+    "properties": {
+      "field_name": { "type": "type" }
+      // Add your index mapping here
+      // Replace sensitive field names with generic alternatives
+    }
+  }
+}
+```
+**Sample Data**
+```json
+{
+  // Add sample document that reproduces the issue
+  // Use dummy/anonymized data for sensitive fields
+  // Example: Replace real IPs with 10.0.0.x, real emails with user@example.com
+}
+```
+
+## Bug Description
+**Issue Summary:**
+<!-- A clear and concise description of what the bug is -->
+
+**Steps to Reproduce:**
+1.
+2.
+3.
+
+**Impact:**
+<!-- Describe how this bug affects your use case -->
+
+## Environment Information
+**OpenSearch Version:**
+<!-- e.g., OpenSearch 2.19 -->
+
+**Additional Details:**
+<!-- Any other relevant environment information -->
+<!-- Exclude sensitive infrastructure details -->
+
+## Screenshots
+<!-- If applicable, add screenshots to help explain your problem -->
+<!-- ⚠️ IMPORTANT: Ensure screenshots don't contain sensitive information -->