Suppress spdep warnings

[r-ash]

Since updating spdep to v 1.3.6 we're seeing more warnings being raised for Naomi test data:
Warning messages:
1: In spdep::poly2nb(sh) : some observations have no neighbours;
if this seems unexpected, try increasing the snap argument.
2: In spdep::poly2nb(sh) : neighbour object has 2 sub-graphs;
if this sub-graph count seems unexpected, try increasing the snap argument.
3: In spdep::mat2listw(abs(Q), style = "B", zero.policy = TRUE) :
neighbour object has 2 sub-graphs

Stack trace

── Warning ('test-03-run-model.R:74:5'): real model can be run ─────────────────
some observations have no neighbours;
if this seems unexpected, try increasing the snap argument.
Backtrace:
     ▆
  1. ├─withr::with_envvar(...) at test-03-run-model.R:73:3
  2. │ └─base::force(code)
  3. └─hintr:::run_model(data, options, tempdir()) at test-03-run-model.R:74:5
  4.   └─naomi::hintr_run_model(data, options, model_output_path, validate = FALSE) at hintr/R/run_model.R:72:3
  5.     ├─naomi:::handle_naomi_warnings(run_model(data, options, validate))
  6.     │ ├─base::withCallingHandlers(...)
  7.     │ └─base::force(expr)
  8.     └─naomi:::run_model(data, options, validate)
  9.       └─naomi:::naomi_prepare_data(data, options)
10.         └─naomi::naomi_model_frame(...)
11.           └─naomi::create_adj_matrix(mf_areas_sf)
12.             ├─naomi:::suppress_one_message(spdep::poly2nb(sh), "although coordinates are longitude/latitude, st_intersects assumes that they are planar")
13.             │ └─base::withCallingHandlers(...)
14.             └─spdep::poly2nb(sh)

This is expected as Likoma island is separate, and it will potentially be super noisy for running tests and the production app. So suppress the warnings for now.

I have done this by updating our suppress_one_* utils into a single suppress_conditions where you can specify the messages and warnings you want to ignore.

[jeffeaton]

Code changes all look good to me so long as tests pass.

I've requested adding link to the new spdep vignette in the NEWS as a memory aide to future me.

Approving now as the change is non-critical and so you don't have to make me look at it again.

[jeffeaton]

Can you add the link to the spdep vignette describing the package change? (for future me when I forget again)