Update secret risk assessment CTAs to link directly to SRA (#60642)

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
Co-authored-by: Copilot <198982749+Copilot@users.noreply.github.com>
Co-authored-by: Sophie <29382425+sophietheking@users.noreply.github.com>

Author: 4 people

data/variables/secret-scanning.yml

@@ -17,9 +17,9 @@ roi-calculator: 'ROI calculator'
 pricing-calculator: 'pricing calculator'
 
 # Secret risk assessment call to action links. If changing the links below, also update the hard-coded link in /code-security/index.md
-secret-risk-assessment-cta-link: '/code-security/how-tos/secure-at-scale/configure-organization-security/configure-specific-tools/assess-your-secret-risk'
-secret-risk-assessment-cta-text: 'Find out how to run a free secret risk assessment'
-secret-risk-assessment-cta-product: '[<span class="btn btn-primary mt-3 mr-3 no-underline">{% data variables.secret-scanning.secret-risk-assessment-cta-text %}</span>](/code-security/how-tos/secure-at-scale/configure-organization-security/configure-specific-tools/assess-your-secret-risk#generating-an-initial-secret-risk-assessment)'
+secret-risk-assessment-cta-link: 'https://github.com/get_started?with=risk-assessment'
+secret-risk-assessment-cta-text: 'Run a security risk assessment'
+secret-risk-assessment-cta-product: '[<span class="btn btn-primary mt-3 mr-3 no-underline">{% data variables.secret-scanning.secret-risk-assessment-cta-text %}</span>](https://github.com/get_started?with=risk-assessment)'
 
 # Combined to provide a secret to demonstrate push protection. Dummy secret, no access.
 learner-example-secret-a: 'secret_scanning_ab85fc6f8d76'