build(deps): bump pysnc from 1.0.2 to 1.2.0

Bumps [pysnc](https://github.com/ServiceNow/PySNC) from 1.0.2 to 1.2.0.
- [Release notes](https://github.com/ServiceNow/PySNC/releases)
- [Commits](ServiceNow/PySNC@1.0.2...1.2.0)

---
updated-dependencies:
- dependency-name: pysnc
  dependency-version: 1.2.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

assets/security_ir_client/requirements.txt

@@ -1,6 +1,6 @@
 boto3>=1.37.7
 aws-lambda-powertools>=2.30.2
 requests>=2.31.0
-pysnc==1.0.2
+pysnc==1.2.0
 PyJWT==2.8.0
 cryptography==46.0.3

assets/service_now_client/requirements.txt

@@ -1,4 +1,4 @@
 boto3>=1.37.7
-pysnc==1.0.2
+pysnc==1.2.0
 PyJWT==2.8.0
 cryptography==46.0.3

assets/service_now_notifications_handler/requirements.txt

@@ -1,5 +1,5 @@
 boto3>=1.37.7
-pysnc==1.0.2
+pysnc==1.2.0
 aws-lambda-powertools>=2.30.0
 PyJWT==2.8.0
 cryptography==46.0.3