[Snyk] Fix for 1 vulnerabilities

[snyk-bot]

Snyk has created this PR to fix one or more vulnerable packages in the `npm` dependencies of this project.

As this is a private repository, Snyk-bot does not have access. Therefore, this PR has been created automatically, but appears to have been created by a real user.

Changes included in this PR

• Changes to the following files to upgrade the vulnerable dependencies to a fixed version:
  • backend/package.json
  • backend/package-lock.json

Vulnerabilities that will be fixed

With an upgrade:

Severity	Priority Score (*)	Issue	Breaking Change	Exploit Maturity
	661/1000 Why? Recently disclosed, Has a fix available, CVSS 7.5	Regular Expression Denial of Service (ReDoS) SNYK-JS-NORMALIZEURL-1296539	Yes	No Known Exploit

(*) Note that the real score may have changed since the PR was raised.

Commit messages

Package name: mini-css-extract-plugin

The new version differs by 51 commits.

• 6ebe51d chore(release): 1.1.0
• 9ae47e5 fix: remove `normalize-url` from deps (#623)
• 71a9ce9 fix: ignore modules without identifier (#627)
• 028b4f2 docs: use css-minimizer-webpack-plugin (#624)
• e8a2d5a feat: added `attributes` option
• a5f17c4 feat: added the `insert` option
• 3d017a2 docs: improve readme (#616)
• 2946edc ci: update (#614)
• 2b432e9 refactor: removed unused option hmr (#608)
• 975cfda chore(tool): fix (#607)
• fae8ed0 test: devtool
• 884cbfe docs: fix ambiguous docs (#605)
• 7335077 docs: clean unused link in readme (#604)
• 787b6d2 docs: improve readme (#603)
• 315bbac chore(release): 1.0.0
• 2a3b4a8 refactor: next
• b935f26 chore(release): 0.12.0
• bc0ca2c test: improve (#601)
• 5fafdf8 feat opt-in to transitive only side effects (webpack@5) (#599)
• ef4bd79 test: empty chunk
• 0494230 chore(release): 0.11.3
• 6e09a51 fix: better support for webpack 5 (#595)
• bb09d75 chore(release): 0.11.2
• e4ddf29 test: cache (#588)

See the full diff

Package name: optimize-css-assets-webpack-plugin

The new version differs by 5 commits.

• 09d29b3 5.0.5
• d0a7da7 feat(deps): update dependencies (#154)
• 41d1e23 Redirect to css-minimizer-webpack-plugin for webpack 5 or above
• e9b84f1 5.0.4
• b3a3ada Update dependencies (#133)

See the full diff

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