shopping-merchant-products can not be installed via composer due to dependencies conflict

[Whip]

Package google/shopping-merchant-products hasn't been bumped to allow google/protobuf ^5.0, even though sibling packages (google/common-protos, google/gax, google/grpc-gcp) already support v5. I have it already installed at 5.35 version so when I try to install this package

 composer require google/shopping-merchant-products

I get this error:

  Problem 1
    - Root composer.json requires google/shopping-merchant-products * -> satisfiable by google/shopping-merchant-products[v0.1.0, ..., v0.7.0, v1.0.0, ..., v1.7.0].
    - google/shopping-common-protos v0.4.0 requires google/protobuf ^v3.25.3||^4.26.1 -> found google/protobuf[v3.25.3, ..., v3.25.9, v4.26.1, ..., v4.33.6] but the package is fixed to v5.35.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - google/shopping-common-protos v0.4.2 requires google/protobuf ^4.26.1 -> found google/protobuf[v4.26.1, ..., v4.33.6] but the package is fixed to v5.35.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - google/shopping-common-protos[v0.4.3, ..., v0.4.4] require google/protobuf ^4.31 -> found google/protobuf[v4.31.0, ..., v4.33.6] but the package is fixed to v5.35.1 (lock file version) by a partial update and that version does not match. Make sure you list it as an argument for the update command.
    - google/shopping-merchant-products[v0.1.0, ..., v0.7.0, v1.0.0] require google/shopping-common-protos ^0.4.0 -> satisfiable by google/shopping-common-protos[v0.4.0, v0.4.2, v0.4.3, v0.4.4].
    - google/shopping-merchant-products[v1.1.0, ..., v1.7.0] require google/shopping-common-protos ~0.4.0 -> satisfiable by google/shopping-common-protos[v0.4.0, v0.4.2, v0.4.3, v0.4.4].

Environment details

• OS: Ubuntu 24.04
• PHP version: 8.2
• Package name and version: google/shopping-merchant-products

Steps to reproduce

1. Install something like "google/apiclient"
2. Install the package

[bshaffer]

Thank you for reporting this issue! This will be fixed in #9405