1. Which Jira issue is this PR addressing? Make sure that there is an accompanying issue to your PR.

Fixes regressions from removing Python 3.9 (#4218) and improves merge-gate coverage for 3.10/3.11.

• test_environment.yml: Bump scikit-learn from 1.0.1 → 1.2.0 so it resolves on Snowflake with python=3.10 (1.0.x has no Python 3.10 builds in Snowflake’s Anaconda channel).
• precommit.yml: Add two integration test matrix jobs — Python 3.10 on AWS/Ubuntu and Python 3.11 on Azure/Windows — so packaging tests like test_add_requirements_yaml actually exercise the Snowflake UDF path on 3.10 (previously skipped on 3.12+ due to the cloudpickle version check).
• FIPS CI: Migrate from EOL centos:8 to rockylinux:9 with Python 3.11 (python310 RPMs don’t exist on EL8). Update Dockerfile, test_fips.sh, and daily_precommit.yml accordingly; fix OpenSSL FIPS install to use the built binary and auto-detect the fips.so path across architectures.

2. Fill out the following pre-review checklist:

   • I am adding a new automated test(s) to verify correctness of my new code
     • If this test skips Local Testing mode, I'm requesting review from @snowflakedb/local-testing
   • I am adding new logging messages
   • I am adding a new telemetry message
   • I am adding new credentials
   • I am adding a new dependency
   • If this is a new feature/behavior, I'm adding the Local Testing parity changes.
   • I acknowledge that I have ensured my changes to be thread-safe. Follow the link for more information: Thread-safe Developer Guidelines
   • If adding any arguments to public Snowpark APIs or creating new public Snowpark APIs, I acknowledge that I have ensured my changes include AST support. Follow the link for more information: AST Support Guidelines

3. Please describe how your code solves the related issue.

   Please write a short description of how your code change solves the related issue.