tools: make update-eslint.sh work with npm@7

Install `eslint-plugin-markdown` at the same level of `eslint` without cd'ing into `eslint` directory, otherwise the following error is raised: ``` npm ERR! code ERESOLVE npm ERR! Cannot destructure property 'name' of 'node' as it is null. ``` Fixes: #37560
nodejs · lpinca · Mar 2, 2021 · Mar 3, 2021 · a6ec31eb4595f445e4d2f88f73f858a7f6326083
commit a6ec31eb4595f445e4d2f88f73f858a7f6326083
diff --git a/...de_modules/eslint-plugin-markdown/LICENSE → ...de_modules/eslint-plugin-markdown/LICENSE b/...de_modules/eslint-plugin-markdown/LICENSE → ...de_modules/eslint-plugin-markdown/LICENSE
diff --git a/..._modules/eslint-plugin-markdown/README.md → ..._modules/eslint-plugin-markdown/README.md b/..._modules/eslint-plugin-markdown/README.md → ..._modules/eslint-plugin-markdown/README.md
diff --git a/...e_modules/eslint-plugin-markdown/index.js → ...e_modules/eslint-plugin-markdown/index.js b/...e_modules/eslint-plugin-markdown/index.js → ...e_modules/eslint-plugin-markdown/index.js
diff --git a/...dules/eslint-plugin-markdown/lib/index.js → ...dules/eslint-plugin-markdown/lib/index.js b/...dules/eslint-plugin-markdown/lib/index.js → ...dules/eslint-plugin-markdown/lib/index.js
diff --git a/...s/eslint-plugin-markdown/lib/processor.js → ...s/eslint-plugin-markdown/lib/processor.js b/...s/eslint-plugin-markdown/lib/processor.js → ...s/eslint-plugin-markdown/lib/processor.js
diff --git a/...modules/eslint/node_modules/bail/index.js → ...lugin-markdown/node_modules/bail/index.js b/...modules/eslint/node_modules/bail/index.js → ...lugin-markdown/node_modules/bail/index.js
diff --git a/..._modules/eslint/node_modules/bail/license → ...plugin-markdown/node_modules/bail/license b/..._modules/eslint/node_modules/bail/license → ...plugin-markdown/node_modules/bail/license
diff --git a/...les/eslint/node_modules/bail/package.json → ...n-markdown/node_modules/bail/package.json b/...les/eslint/node_modules/bail/package.json → ...n-markdown/node_modules/bail/package.json
diff --git a/...odules/eslint/node_modules/bail/readme.md → ...ugin-markdown/node_modules/bail/readme.md b/...odules/eslint/node_modules/bail/readme.md → ...ugin-markdown/node_modules/bail/readme.md
diff --git a/...ules/character-entities-legacy/index.json → ...ules/character-entities-legacy/index.json b/...ules/character-entities-legacy/index.json → ...ules/character-entities-legacy/index.json
diff --git a/...modules/character-entities-legacy/license → ...modules/character-entities-legacy/license b/...modules/character-entities-legacy/license → ...modules/character-entities-legacy/license
diff --git a/...es/character-entities-legacy/package.json → ...es/character-entities-legacy/package.json b/...es/character-entities-legacy/package.json → ...es/character-entities-legacy/package.json
diff --git a/...dules/character-entities-legacy/readme.md → ...dules/character-entities-legacy/readme.md b/...dules/character-entities-legacy/readme.md → ...dules/character-entities-legacy/readme.md
diff --git a/...ode_modules/character-entities/index.json → ...ode_modules/character-entities/index.json b/...ode_modules/character-entities/index.json → ...ode_modules/character-entities/index.json
diff --git a/...t/node_modules/character-entities/license → ...n/node_modules/character-entities/license b/...t/node_modules/character-entities/license → ...n/node_modules/character-entities/license
diff --git a/...e_modules/character-entities/package.json → ...e_modules/character-entities/package.json b/...e_modules/character-entities/package.json → ...e_modules/character-entities/package.json
diff --git a/...node_modules/character-entities/readme.md → ...node_modules/character-entities/readme.md b/...node_modules/character-entities/readme.md → ...node_modules/character-entities/readme.md
diff --git a/...es/character-reference-invalid/index.json → ...es/character-reference-invalid/index.json b/...es/character-reference-invalid/index.json → ...es/character-reference-invalid/index.json
diff --git a/...dules/character-reference-invalid/license → ...dules/character-reference-invalid/license b/...dules/character-reference-invalid/license → ...dules/character-reference-invalid/license