move the deprecation `@includes` inside the css rule

completes issue #979

as per @mrholek instructions in PR #980

…rnings

fix: spurious deprecation warnings in SCSS code

@babel/cli                        ^7.27.2  →   ^7.28.0
@babel/core                       ^7.27.1  →   ^7.28.0
@babel/preset-env                 ^7.27.2  →   ^7.28.0
@eslint/markdown                   ^6.4.0  →    ^6.6.0
@rollup/plugin-commonjs           ^28.0.3  →   ^28.0.6
bootstrap                          ^5.3.6  →    ^5.3.7
eslint                            ^9.27.0  →   ^9.30.1
eslint-plugin-html                 ^8.1.2  →    ^8.1.3
eslint-plugin-import              ^2.31.0  →   ^2.32.0
globals                           ^16.1.0  →   ^16.3.0
hugo-bin                         ^0.144.3  →  ^0.144.9
jasmine                            ^5.7.1  →    ^5.8.0
postcss                            ^8.5.3  →    ^8.5.6
rollup                            ^4.40.2  →   ^4.44.1
sass-embedded                     ^1.89.0  →   ^1.89.2
sass-true                          ^8.1.0  →    ^9.0.0
stylelint                        ^16.19.1  →  ^16.21.0
stylelint-config-twbs-bootstrap   ^16.0.0  →   ^16.1.0
terser                             5.39.2  →    5.43.1