Bump @11ty/eleventy-img from 6.0.4 to 7.0.0 in the npm-major-upgrades group - #1158

Changed pages include:

• index.html - view
• courses/index.html - view
• oddnews/index.html - view
• susy/index.html - view
• talks/index.html - view
• tools/index.html - view
• work/index.html - view
• books/jumpstartsass/index.html - view
• courses/anchor-positioning/index.html - view
• courses/poetic-css/index.html - view

There are more changes not included in the list