Update dependency postcss-selector-parser to v7

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
postcss-selector-parser	^5.0.0-rc.3 → ^7.0.0

---

Release Notes

postcss/postcss-selector-parser (postcss-selector-parser)

v7.1.1

Compare Source

• perf: replace startsWith with strict equality (#​308)
• fix(types): add walkUniversal declaration (#​311)

v7.1.0

Compare Source

• feat: insert(Before|After) support multiple new node

v7.0.0

Compare Source

• Feat: make insertions during iteration safe (major)

v6.1.2

Compare Source

• Fixed: erroneous trailing combinators in pseudos

v6.1.1

Compare Source

• Fixed: improve typings of constructor helpers (#​292)

v6.1.0

Compare Source

• Feature: add sourceIndex to Selector nodes (#​290)

v6.0.16

Compare Source

• Fixed: add missing index argument to each/walk callback types (#​289)

v6.0.15

Compare Source

• Fixed: Node#prev and Node#next type for the first/last node

v6.0.14

Compare Source

• Fixed: type definitions

v6.0.13

Compare Source

• Fixed: throw on unexpected pipe symbols

v6.0.12

Compare Source

• Fixed: clone arguments should be optional

v6.0.11

Compare Source

• Fixed: parse attribute case insensitivity flag

v6.0.10

Compare Source

• Fixed: isPseudoElement() supports :first-letter and :first-line

v6.0.9

Compare Source

• Fixed: Combinator.raws property type

v6.0.8

Compare Source

• Fixed: reduced size

v6.0.7

Compare Source

• Fixed: parse animation percents

v6.0.6

Compare Source

• Fixed: parse quoted attributes containing a newline correctly

v6.0.5

Compare Source

• Perf: rework unesc for a 63+% performance boost

v6.0.4

Compare Source

• Fixed: ts errors

v6.0.3

Compare Source

• Fixed: replace node built-in "util" module with "util-deprecate"
• Fixed: handle uppercase pseudo elements
• Fixed: do not create invalid combinator before comment

v6.0.2

Compare Source

• Fixed an issue with parsing and stringifying an empty attribute value

v6.0.1

Compare Source

• Fixed: add missing index argument to each/walk callback types (#​289)

v6.0.0

Compare Source

• Updated: cssesc to 3.0.0 (major)
• Fixed: Issues with escaped id and class selectors

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

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

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

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

---

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

---

This PR was generated by Mend Renovate. View the repository job log.