Update lintrunner requirements (#22185)

### Description
* Add lintrunner to requirements-lintrunner.txt
* Lock lintrunner and lintrunner-adapter version
* Update documentation

### Motivation and Context
The document is not up to date.

docs/Coding_Conventions_and_Standards.md

@@ -155,7 +155,7 @@ Using `Show Code Coverage Coloring` will allow you to visually inspect which lin
 This project uses [lintrunner](https://github.com/suo/lintrunner) for linting. It provides a consistent linting experience locally and in CI. You can install the dependencies and initialize with
 
 ```sh
-pip install lintrunner lintrunner-adapters
+pip install -r requirements-lintrunner.txt
 lintrunner init
 ```
 

requirements-lintrunner.txt

@@ -1,5 +1,7 @@
 # This file is auto updated by dependabot
-lintrunner-adapters>=0.12.4
+# When any package below is changed, you shall run "lintrunner init" again.
+lintrunner==0.12.5
+lintrunner-adapters==0.12.4
 # RUFF
 ruff==0.5.4
 # BLACK-ISORT