Release 2.0.5 with current dry-rb support

[vtka]

Summary

• release SMSC 2.0.5
• widen dry-configurable from ~> 0.11 to >= 0.11, < 2
• refresh the development/test toolchain and dependency lock
• add regression coverage for configured default credentials
• point project metadata and contribution links to the canonical repository

The wider constraint lets applications resolve the current dry-rb stack (dry-configurable 1.4.0, dry-monads 1.10.0, and dry-types 1.9.1) while retaining every version admitted by the previous dry-configurable constraint.

Breaking changes

None. The SMSC public API is unchanged, the previous dry-configurable 0.x range is still allowed, and this patch does not add a minimum runtime Ruby version. Applications that directly depend on dry-rb internals should still review dry-rb's own major-version notes before opting into dry-configurable 1.x.

Validation

• SMSC latest stack on Ruby 3.4.10: 27 examples, 0 failures
• SMSC latest stack on Ruby 4.0.6: 27 examples, 0 failures
• SMSC existing legacy lock: 27 examples, 0 failures
• Best Food integration on the latest dry stack: 199 examples, 0 failures, 4 pending
• Octopus SMS/job/service integration on its existing dry stack: 11 examples, 0 failures
• smsc-2.0.5.gem builds with the expected runtime dependency metadata and packaged changelog
• all HTTP interactions were stubbed with WebMock; no live SMS was sent