[build]fix: remove duplicate version properties in root pom

[zhehenlu]

What's changed?

• Root pom.xml: Removed 4 duplicate version properties in <properties> so each version is defined only once.
  • spring-boot-starter-sureness.version (was declared twice, same value 1.1.0)

• commons-net (was declared twice: 3.10.0 earlier, 3.8.0 later — kept the first, removed the duplicate)

• iotdb-session.version (was declared twice, same value 0.13.3)

• taos-jdbcdriver.version (was declared twice, same value 3.0.0)

No behavior change; Maven already used the last occurrence. This avoids confusion and keeps a single source of truth.

Checklist

• I have read the Contributing Guide
• I have written the necessary doc or comment.
• N/A for unit tests (build/config only; no code logic change)

Add or update API

• N/A (no API changes)