Merge bitcoin/bitcoin#30804: fuzz: Rename fuzz_seed_corpus to fuzz_corpora

8888beea8d scripted-diff: fuzz: Rename fuzz_seed_corpus to fuzz_corpora (MarcoFalke)

Pull request description:

  Now that cmake was a breaking change for all fuzz scripts, it seems fine to bundle it with another breaking change to rename the fuzz corpora directory, as discussed and approved in https://github.com/bitcoin-core/qa-assets/issues/200:

  * The word "seed" in the old name doesn't really apply. In reality it is a collection of fuzz input seeds, as well as fuzz inputs.
  * The rename will also allow in the future (when there is a need and desire) to provide a minimal set of possibly hand-crafted or otherwise non-fuzz-generated fuzz seed inputs to some fuzz targets (and possibly store them in a separate folder and validate that their format is still accurate and matches the fuzz target code).
  * Finally, "corpus" is renamed to corpora, to clarify that the folder holds the fuzz inputs for several fuzz targets.

ACKs for top commit:
  brunoerg:
    ACK 8888beea8d
  marcofleon:
    ACK 8888beea8d

Tree-SHA512: abc693ca5d946850f04b6349e2a98f8fbc2ba9991be5a025bc0f357e341cbe7510f2f5f0e47b997d07136736d818df361270f372b8fb70860995a0605ca81e4d

src/test/fuzz/fuzz.cpp

@@ -49,7 +49,7 @@ static std::vector<const char*> g_args;
 static void SetArgs(int argc, char** argv) {
     for (int i = 1; i < argc; ++i) {
         // Only take into account arguments that start with `--`. The others are for the fuzz engine:
-        // `fuzz -runs=1 fuzz_seed_corpus/address_deserialize_v2 --checkaddrman=5`
+        // `fuzz -runs=1 fuzz_corpora/address_deserialize_v2 --checkaddrman=5`
         if (strlen(argv[i]) > 2 && argv[i][0] == '-' && argv[i][1] == '-') {
             g_args.push_back(argv[i]);
         }