Soften sibling constraints to caret ranges (#9)

Intra-utopia requires move from X.Y.* pins to ^X.Y across cli, http,
platform, queue and servers (client and pools already used carets).
For 0.x siblings the range is equivalent today, but the style is
uniform and minors flow through automatically once packages reach 1.0.
servers' broad 'validators 0.*' narrows to ^0.2, matching the released
line.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Hoist phpunit to the monorepo toolchain (#3)

One phpunit (^12) pinned in the root composer.json; packages no longer
declare it. Package test scripts call `phpunit`, resolved from the
root vendor/bin which bin/monorepo puts on PATH; mirror workflows get
it via setup-php's tools input.

Migrates the phpunit 9 era leftovers: cli and platform phpunit.xml
schemas, cli's @dataProvider annotation to an attribute. cli's mirror
test matrix moves to 8.3-8.5 (phpunit 12 needs >=8.3). bin/monorepo
absorb now strips phpunit and rewrites test scripts for incoming
libraries.

Co-authored-by: Claude Fable 5 <noreply@anthropic.com>

Merge pull request #54 from utopia-php/chore/relax-servers-0.4-patch

Relax servers patch constraint

Merge pull request #53 from utopia-php/feat-param-alias

Feat: Param aliases

Merge pull request #52 from ChiragAgg5k/fix/loose-bool-string-coercion

Merge pull request #51 from utopia-php/codex/task-container-injection

feat: allow cli container injection

Merge pull request #50 from utopia-php/chore-update-servers-0.3

chore: update utopia-php/servers from 0.2 to 0.3

Merge pull request #48 from utopia-php/fix/nullable-onerror

Fix nullable type for Console::loop onError

Merge pull request #47 from utopia-php/chore-remove-console-and-frame…

…work

chore: remove framework

Merge pull request #46 from utopia-php/chore-remove-console

chore: remove console