SBCQ-177-Added additional sanitation for deleting file

[Rajandeep98]

PS: Change this code to not construct the path from user-controlled data.
Why: _Path injections occur when an application uses untrusted data to construct a file path and access this file without validating its path first.

A user with malicious intent would inject specially crafted values, such as ../, to change the initial intended path. The resulting path would resolve somewhere in the filesystem where the user should not normally have access to._

Changes:
Added static method to sanitize the path before passing it to delete

• os.basename inbuilt function should remove the additional dir/path attached to name
• additional constraint to only allow certain character (alphanumeric characters, underscores, hyphens, and dots)
• as this part of code is only for deleting the mp4 files from predefined directory, adding constraint to only pass mp4 files.

json response:
"videofiles": [
{
"name": "pitest2.mp4",
"date": "2024-06-17 06:06:43 AM",
"size": " 0.492Mb"
},]

[josekudiyirippil]

this PR is linked to PR 946 . Sonar cloud is not reporting that issue now. Needs to discuss.

[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 SonarCloud

[josekudiyirippil]

approving