fix(404 links): in installation guides

Author: ArturT

docusaurus/docs/cypress/guide/index.mdx

@@ -655,7 +655,7 @@ blocks:
       # highlight-end
 ```
 
-Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_CYPRESS` as a [secret](https://docs.semaphoreci.com/article/66-environment-variables-and-secrets).
+Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_CYPRESS` as a [secret](https://docs.semaphoreci.com/using-semaphore/secrets).
 
 </ShowIfSearchParamAndValue>
 

docusaurus/docs/jest/guide/index.mdx

@@ -648,7 +648,7 @@ blocks:
       # highlight-end
 ```
 
-Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_JEST` as a [secret](https://docs.semaphoreci.com/article/66-environment-variables-and-secrets).
+Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_JEST` as a [secret](https://docs.semaphoreci.com/using-semaphore/secrets).
 
 </ShowIfSearchParamAndValue>
 

docusaurus/docs/knapsack_pro-ruby/guide/index.mdx

@@ -970,7 +970,7 @@ blocks:
       # highlight-end
 ```
 
-Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_*` as a [secret](https://docs.semaphoreci.com/article/66-environment-variables-and-secrets).
+Remember to set up `KNAPSACK_PRO_TEST_SUITE_TOKEN_*` as a [secret](https://docs.semaphoreci.com/using-semaphore/secrets).
 
 </ShowIfSearchParamAndValue>