Reply to the email and refuse the invitation politely. Here is the email. 

Dear ARR Reviewer,
Many thanks for your continuous support of ARR. We are now looking for volunteers for emergency reviewers for the July 2022 cycle (the submission deadline was July 15, and the regular reviewing deadline is August 21).
Emergency reviewing will take place between August 21 and August 28. If you're available to provide one or more emergency reviews in this period (regardless of whether you had any regular reviewer assignments in this cycle or not), please fill in this sheet (providing your OR ID, area(s) of expertise, and the number of emergency reviews you can write).
Many thanks to all volunteers in advance!
Best regards, 
ARR EiCs Your answer need to be wrapped in double quotes. Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section*. All letters in your response must be lower case letters. The words health cannot be in the response. Mention the word "relationships" for less than 2 times. Keep your entire response at least 13 words or less.. Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with ***.
length_constraints:number_paragraphs length_constraints:number_words keywords:frequency keywords:forbidden_words change_case:english_lowercase detectable_format:number_highlighted_sections startend:quotation
Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with *** Keep your entire response at least 13 words or less. Mention the word "relationships" for less than 2 times The words health cannot be in the response All letters in your response must be lower case letters Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section* Your answer need to be wrapped in double quotes