Update versionMvn and versionNpm in all book-product.json

versionMvn should be 2.5.5.Final-redhat-1
versionNpm should be 2.5.5-Final-redhat-1

Note: versionMvn and versionNpm are subtly different!
Note: versionNpm is added here https://github.com/keycloak/keycloak-documentation/commit/928e2f18732fcf3d14a69b61953b0d9e2c2ef036 which should be added to 7.1.