Appended period remove & Uri parsing fix. (#131293)

Fixed code for the Uri as it includes the period at the end as the part of Uri parsing previously.

As for example:
```
A crash report has been written to /Users/andrewkolos/Desktop/asset_transformers_test/flutter_03.log.
``` 

Many terminals are unable to follow the link because it includes the period in the end as part of it. This PR simply removes the period in the end so that it is clickable in many systems (e.g. by `alt` -clicking on it in an embedded bash terminal, VSCode).

```
A crash report has been written to /Users/andrewkolos/Desktop/asset_transformers_test/flutter_03.log
``` 

Fixes:  #131166

packages/flutter_tools/lib/src/reporting/crash_reporting.dart

@@ -69,7 +69,7 @@ class CrashReporter {
 
   /// Prints instructions for filing a bug about the crash.
   Future<void> informUser(CrashDetails details, File crashFile) async {
-    _logger.printError('A crash report has been written to ${crashFile.path}.');
+    _logger.printError('A crash report has been written to ${crashFile.path}');
     _logger.printStatus('This crash may already be reported. Check GitHub for similar crashes.', emphasis: true);
 
     final String similarIssuesURL = GitHubTemplateCreator.toolCrashSimilarIssuesURL(details.error.toString());

packages/flutter_tools/test/general.shard/crash_reporting_test.dart

@@ -100,7 +100,7 @@ void main() {
     expect(logger.statusText, contains('NoPIIFakeDoctorText'));
     expect(logger.statusText, isNot(contains('Ignored')));
     expect(logger.statusText, contains('https://github.com/flutter/flutter/issues/new'));
-    expect(logger.errorText, contains('A crash report has been written to ${file.path}.'));
+    expect(logger.errorText.trim(), 'A crash report has been written to ${file.path}');
   });
 
   testWithoutContext('suppress analytics', () async {