8.0.0

• Supporting Gatsby v4 #192
• Containing Experimental model filtering #193
• New example for DSG and SSR #196

Version 8.0.0 of packages:

• https://www.npmjs.com/package/@kentico/gatsby-source-kontent/v/8.0.0
• https://www.npmjs.com/package/@kentico/gatsby-kontent-components/v/8.0.0