Fix unexpected error due to closed method not implemented in Ballerina stream object

[TharmiganK]

Purpose

$Subject

Fixes: ballerina-platform/ballerina-library#8288

Examples

N/A

Checklist

• Linked to an issue
• Updated the changelog
• Added tests
• Updated the spec
• Checked native-image compatibility

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 2 lines in your changes missing coverage. Please review.
✅ Project coverage is 82.72%. Comparing base (cd7bbcf) to head (5d66ea9).
⚠️ Report is 1 commits behind head on master.

Files with missing lines	Patch %	Lines
.../ballerina/stdlib/crypto/BallerinaInputStream.java	75.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #609      +/-   ##
============================================
+ Coverage     82.62%   82.72%   +0.10%     
- Complexity      239      241       +2     
============================================
  Files            28       28              
  Lines          1335     1343       +8     
  Branches        182      183       +1     
============================================
+ Hits           1103     1111       +8     
+ Misses          186      185       -1     
- Partials         46       47       +1     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.