The release tag 10.1.0 appears to be gone from Packagist:
This breaks lockfile updates:
Updating dependencies
Your requirements could not be resolved to an installable set of packages.
Problem 1
- Root composer.json requires netresearch/rte-ckeditor-image == 10.1.0.0, it is found netresearch/rte-ckeditor-image[10.1.0] in the lock file and netresearch/rte-ckeditor-image[dev-TYPO3_8.7.x, dev-TYPO3_9.x, dev-TYPO3_10, dev-i56_images-in-preview, dev-i82_lazyload, dev-i88_custom-css-class, dev-issue-119_update-images-on-editor-load, v8.7.1, ..., v8.9.0, v9.0.0, ..., v9.0.5, v10.0.0, v10.2.0, v10.2.1, v11.0.0, v11.0.1, v11.0.2] from composer repo (https://repo.packagist.org) but these do not match your constraint and are therefore not installable. Make sure you either fix the constraint or avoid updating this package to keep the one from the lock file.
The release tag 10.1.0 appears to be gone from Packagist:
This breaks lockfile updates: