fuzz: fix debug fuzzing issues (#1869)

* fuzz: allow debug-printing components

Without this feature, the fuzzer fails when running with logging
enabled:

```
RUST_LOG=debug cargo +nightly fuzz run run
```

Turning on `RUST_LOG=debug` prints the generated test cases to files and
certain fuzz targets (e.g., `wit64`) need to print components.

* fuzz: ignore test configurations

When running fuzzing with `RUST_LOG=debug`, the fuzz targets print
configurations with the form `test*.config`, not `test.config`.

.gitignore

@@ -4,8 +4,8 @@ publish
 # Generated by some fuzz targets.
 *.wasm
 *.wat
-test.config
+test*.config
 
 .DS_Store
 .idea
-.vscode
+.vscode

fuzz/Cargo.toml

@@ -20,7 +20,7 @@ tempfile = "3.0"
 wasm-mutate = { workspace = true }
 wasm-smith = { workspace = true, features = ['component-model', 'wasmparser'] }
 wasmparser = { workspace = true, features = ['features'] }
-wasmprinter = { workspace = true }
+wasmprinter = { workspace = true, features = ['component-model'] }
 wasmtime = { workspace = true, optional = true }
 wast = { workspace = true }
 wat = { workspace = true }