Update dependency cssnano to v5.1.15 - autoclosed

This MR contains the following updates:

Package	Type	Update	Change
cssnano	devDependencies	patch	5.1.12 -> 5.1.15

---

Release Notes

cssnano/cssnano (cssnano)

v5.1.15: v5.1.15

Compare Source

Bug Fixes

• fix(postcsss-reduce-initial): fix mask-repeat conversion
• fix(postcss-colormin): don't minify colors in src declarations
• fix(postcss-merge-rules): do not merge conflicting flex and border properties

v5.1.14: v5.1.14

Compare Source

Bug Fixes

• fix: update autoprefixer and browserslist
• fix(postcss-reduce-initial): improve initial properties data

v5.1.13: v5.1.13

Compare Source

Bug Fixes

• fix TypeScript type of cssnano() return value (https://github.com/cssnano/cssnano/commit/b92dbe3ab1db16141dc6296cd350f3fdf5c2defe)

---

Configuration

📅 Schedule: Branch creation - "before 7am on the first day of the month" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.