[GitHub Actions] limit mirror job only to JetBrains/intellij-sdk-docs#master
[GitHub Actions] limit mirror job only to JetBrains/intellij-sdk-docs#master

artspb/intellij-sdk-docs,JetBrains/intellij-sdk-docs,JetBrains/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,artspb/intellij-sdk-docs,JetBrains/intellij-sdk-docs