CUE-6067: Make faker data generation more deterministic

[jatin3893]

1. The generated strings are of random length -> Hence making it more specific to ensure it doesn't show random keywords
2. The regex used for generating UUIDs contained urn:uuid: in the prefix which is not required for UUID. Hence removing the same.

Test Scenarios after Integrating with postman-app:

1. Generated 100 UUIDs -> All are consistent without the urn:uuid prefix

1. Generated 100 normal strings -> All show "string" in the generated example

[github-actions]

integration test code coverage

Lines	Statements	Branches	Functions
	19.38% (2040/10525)	13.55% (993/7327)	20.06% (235/1171)

Coverage Breakdown • (19%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	19.38	13.55	20.06	19.67

report-only-changed-files is enabled. No files were changed in this commit :)

[github-actions]

unit test code coverage

Lines	Statements	Branches	Functions
	89.22% (5728/6420)	80.71% (3725/4615)	93.92% (850/905)

Coverage Breakdown • (89%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	89.22	80.71	93.92	89.34

report-only-changed-files is enabled. No files were changed in this commit :)

[Copilot]

Pull Request Overview

This PR enhances the deterministic behavior of faker data generation by ensuring consistent string lengths and correcting UUID format generation.

• Modifies the default minimum string length from 0 to 6 to prevent truncated string outputs
• Removes the unnecessary urn:uuid: prefix from UUID regex pattern to generate clean UUID format

Comments suppressed due to low confidence (1)

assets/json-schema-faker.js:1

• The hardcoded minimum length of 6 is a magic number. Consider defining it as a named constant (e.g., MIN_STRING_LENGTH = 6) to improve code readability and maintainability.

/* eslint-disable */

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