[R] [CI] Don't test DuckDB in the minimal build

[asfimport]

The error is:

══ Failed tests ════════════════════════════════════════════════════════════════
── Error (test-duckdb.R:24:3): to_duckdb ───────────────────────────────────────
Error: Cannot call dataset___InMemoryDataset__create(). See https://arrow.apache.org/docs/r/articles/install.html for help installing Arrow C++ libraries. 
Backtrace:
    █
 1. └─InMemoryDataset$create(example_data) test-duckdb.R:24:2
 2.   └─arrow:::dataset___InMemoryDataset__create(x)
── Error (test-duckdb.R:66:3): summarise(..., .engine) ─────────────────────────
Error: Cannot call dataset___InMemoryDataset__create(). See https://arrow.apache.org/docs/r/articles/install.html for help installing Arrow C++ libraries. 
Backtrace:
    █
 1. └─InMemoryDataset$create(example_data) test-duckdb.R:66:2
 2.   └─arrow:::dataset___InMemoryDataset__create(x)
── Error (test-duckdb.R:97:3): Joining, auto-cleanup ───────────────────────────
Error: Cannot call dataset___InMemoryDataset__create(). See https://arrow.apache.org/docs/r/articles/install.html for help installing Arrow C++ libraries. 
Backtrace:
    █

https://dev.azure.com/ursacomputing/crossbow/_build/results?buildId=9100&view=logs&j=0da5d1d9-276d-5173-c4c4-9d4d4ed14fdb&t=d9b15392-e4ce-5e4c-0c8c-b69645229181&l=9535

Reporter: Jonathan Keane / @jonkeane
Assignee: Jonathan Keane / @jonkeane

PRs and other links:

• GitHub Pull Request #10861

_{Note: This issue was originally created as ARROW-13538. Please see the migration documentation for further details.}

[asfimport]

Jonathan Keane / @jonkeane:
Issue resolved by pull request 10861
#10861