docs(stdlibs): fix outdated reference to the testing package

[MikaelVallenet]

[Gno2D2]

🛠 PR Checks Summary

🔴 Changes to 'docs' folder must be reviewed/authored by at least one devrel and one tech-staff

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🟢 Maintainers must be able to edit this pull request (more info) 🔴 Changes to 'docs' folder must be reviewed/authored by at least one devrel and one tech-staff 🟢 Pending initial approval by a review team member, or review from tech-staff

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Maintainers must be able to edit this pull request (more info)

If

🟢 Condition met
└── 🟢 And
    ├── 🟢 The base branch matches this pattern: ^master$
    └── 🟢 The pull request was created from a fork (head branch repo: MikaelVallenet/gno)

Then

🟢 Requirement satisfied
└── 🟢 Maintainer can modify this pull request

Changes to 'docs' folder must be reviewed/authored by at least one devrel and one tech-staff

If

🟢 Condition met
└── 🟢 And
    ├── 🟢 The base branch matches this pattern: ^master$
    └── 🟢 A changed file matches this pattern: ^docs/ (filename: docs/resources/gno-stdlibs.md)

Then

🔴 Requirement not satisfied
└── 🔴 And
    ├── 🔴 Or
    │   ├── 🔴 Pull request author is a member of the team: tech-staff
    │   └── 🔴 At least 1 user(s) of the team tech-staff reviewed pull request(with state "APPROVED")
    └── 🔴 Or
        ├── 🔴 Pull request author is a member of the team: devrels
        └── 🔴 At least 1 user(s) of the team devrels reviewed pull request(with state "APPROVED")

Pending initial approval by a review team member, or review from tech-staff

If

🟢 Condition met
└── 🟢 And
    ├── 🟢 The base branch matches this pattern: ^master$
    └── 🟢 Not (🔴 Pull request author is a member of the team: tech-staff)

Then

🟢 Requirement satisfied
└── 🟢 If
    ├── 🟢 Condition
    │   └── 🟢 Or
    │       ├── 🟢 User notJoon already reviewed PR 4929 with state APPROVED
    │       ├── 🔴 At least 1 user(s) of the team tech-staff reviewed pull request
    │       └── 🔴 This pull request is a draft
    └── 🟢 Then
        └── 🟢 Not (🔴 This label is applied to pull request: review/triage-pending)

Manual Checks

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If

🟢 Condition met
└── 🟢 On every pull request

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