fix: disable non-running test

We removed the book examples from the test suite, but not from the CI
matrix.

Author: simonrw

.github/workflows/test.yml

@@ -17,21 +17,18 @@ jobs:
           - { test: full-example, rust: stable, allow_failures: false }
           - { test: array, rust: stable, allow_failures: false }
           - { test: fitsio-src, rust: stable, allow_failures: false }
-          - { test: book-examples, rust: stable, allow_failures: false }
           - { test: clippy, rust: stable, allow_failures: false }
           - { test: bindgen, rust: stable, allow_failures: false }
           - { test: workspace, rust: beta, allow_failures: false }
           - { test: full-example, rust: beta, allow_failures: false }
           - { test: array, rust: beta, allow_failures: false }
           - { test: fitsio-src, rust: beta, allow_failures: false }
-          - { test: book-examples, rust: beta, allow_failures: false }
           - { test: clippy, rust: beta, allow_failures: false }
           - { test: bindgen, rust: beta, allow_failures: false }
           - { test: workspace, rust: nightly, allow_failures: true }
           - { test: full-example, rust: nightly, allow_failures: true }
           - { test: array, rust: nightly, allow_failures: true }
           - { test: fitsio-src, rust: nightly, allow_failures: true }
-          - { test: book-examples, rust: nightly, allow_failures: true }
           - { test: clippy, rust: nightly, allow_failures: true }
           - { test: bindgen, rust: nightly, allow_failures: true }
     steps:
@@ -69,21 +66,18 @@ jobs:
           - { test: full-example, rust: stable, allow_failures: false }
           - { test: array, rust: stable, allow_failures: false }
           - { test: fitsio-src, rust: stable, allow_failures: false }
-          - { test: book-examples, rust: stable, allow_failures: false }
           - { test: clippy, rust: stable, allow_failures: false }
           - { test: bindgen, rust: stable, allow_failures: false }
           - { test: workspace, rust: beta, allow_failures: false }
           - { test: full-example, rust: beta, allow_failures: false }
           - { test: array, rust: beta, allow_failures: false }
           - { test: fitsio-src, rust: beta, allow_failures: false }
-          - { test: book-examples, rust: beta, allow_failures: false }
           - { test: clippy, rust: beta, allow_failures: false }
           - { test: bindgen, rust: beta, allow_failures: false }
           - { test: workspace, rust: nightly, allow_failures: true }
           - { test: full-example, rust: nightly, allow_failures: true }
           - { test: array, rust: nightly, allow_failures: true }
           - { test: fitsio-src, rust: nightly, allow_failures: true }
-          - { test: book-examples, rust: nightly, allow_failures: true }
           - { test: clippy, rust: nightly, allow_failures: true }
           - { test: bindgen, rust: nightly, allow_failures: true }
     steps: