doc: revise example of assert.CallTracker

In example of tracker.getCalls(), actual and expected
are mismatched. So update expected value.
In example of tracker.report(), user can check report
easily through console.log().
In example of tracker.reset(), defining of tracker is
missed in CJS. Plus, use assert.strictEqual() to check
result.
PR-URL: #47252
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Antoine du Hamel <duhamelantoine1995@gmail.com>

Author: deokjinkim

doc/api/assert.md

@@ -346,7 +346,7 @@ const callsfunc = tracker.calls(func);
 callsfunc(1, 2, 3);
 
 assert.deepStrictEqual(tracker.getCalls(callsfunc),
- [{ thisArg:this, arguments: [1, 2, 3] }]);
+ [{ thisArg:undefined, arguments: [1, 2, 3] }]);
 ```
 
 ```cjs
@@ -360,7 +360,7 @@ const callsfunc = tracker.calls(func);
 callsfunc(1, 2, 3);
 
 assert.deepStrictEqual(tracker.getCalls(callsfunc),
- [{ thisArg:this, arguments: [1, 2, 3] }]);
+ [{ thisArg:undefined, arguments: [1, 2, 3] }]);
 ```
 
 ### `tracker.report()`
@@ -397,7 +397,7 @@ function func() {}
 constcallsfunc=tracker.calls(func, 2);
 
 // Returns an array containing information on callsfunc()
-tracker.report();
+console.log(tracker.report());
 // [
 // {
 // message: 'Expected the func function to be executed 2 time(s) but was
@@ -423,7 +423,7 @@ function func() {}
 constcallsfunc=tracker.calls(func, 2);
 
 // Returns an array containing information on callsfunc()
-tracker.report();
+console.log(tracker.report());
 // [
 // {
 // message: 'Expected the func function to be executed 2 time(s) but was
@@ -458,24 +458,26 @@ const callsfunc = tracker.calls(func);
 
 callsfunc();
 // Tracker was called once
-tracker.getCalls(callsfunc).length===1;
+assert.strictEqual(tracker.getCalls(callsfunc).length, 1);
 
 tracker.reset(callsfunc);
-tracker.getCalls(callsfunc).length===0;
+assert.strictEqual(tracker.getCalls(callsfunc).length, 0);
 ```
 
 ```cjs
 constassert=require('node:assert');
 
+consttracker=newassert.CallTracker();
+
 functionfunc() {}
 constcallsfunc=tracker.calls(func);
 
 callsfunc();
 // Tracker was called once
-tracker.getCalls(callsfunc).length===1;
+assert.strictEqual(tracker.getCalls(callsfunc).length, 1);
 
 tracker.reset(callsfunc);
-tracker.getCalls(callsfunc).length===0;
+assert.strictEqual(tracker.getCalls(callsfunc).length, 0);
 ```
 
 ### `tracker.verify()`