fix: handleInvalidTarget breaks the removeAttribute function (#26206)

[SteffenDE]

Adds a test for #27311

Closes #26206.

Closes phoenixframework/phoenix_live_view#4071.

---

Note

Fixes removeAttribute patch so non-target attributes can be removed; adds e2e test and fixture verifying behavior.

• Driver:
  • Adjust handleInvalidTarget in packages/driver/src/cy/top_attr_guards.ts so patched el.removeAttribute updates internal state only for "target" and always delegates to native removeAttribute.
• Tests:
  • Add e2e spec packages/driver/cypress/e2e/issues/26206.cy.js and fixture packages/driver/cypress/fixtures/issue-26206.html to verify removing a non-target attribute works after clicking an anchor with target="_top".

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[jennifer-shehane]

@SteffenDE Thanks! Can you fix the linting error?

/root/cypress/packages/driver/src/cy/top_attr_guards.ts
  78:5  error  Expected blank line before this statement  padding-line-between-statements

✖ 1 problem (1 error, 0 warnings)
  1 error and 0 warnings potentially fixable with the `--fix` option.