Merge bitcoin#30963: doc: Adjust links in OSS-Fuzz section

fa6c194 doc: Adjust links in OSS-Fuzz section (MarcoFalke)

Pull request description:

  Adjust the links after the google issue tracker migration and replace the remaining paragraph with a link to https://bitcoincore.org/en/security-advisories/

ACKs for top commit:
  dergoegge:
    ACK fa6c194

Tree-SHA512: 4c3aba8bb5641756be5c66c2ee21b927a675622ddac021303f8196a1b2d8eb891406f6dedab0f04e12312339953c87302891df4ad5f5956c0b2ddd453452e1c9

doc/fuzzing.md

@@ -285,13 +285,11 @@ $ ./honggfuzz/honggfuzz --exit_upon_crash --quiet --timeout 4 -n 1 -Q \
 # OSS-Fuzz
 
 Bitcoin Core participates in Google's [OSS-Fuzz](https://github.com/google/oss-fuzz/tree/master/projects/bitcoin-core)
-program, which includes a dashboard of [publicly disclosed vulnerabilities](https://bugs.chromium.org/p/oss-fuzz/issues/list?q=bitcoin-core).
-Generally, we try to disclose vulnerabilities as soon as possible after they
-are fixed to give users the knowledge they need to be protected. However,
-because Bitcoin is a live P2P network, and not just standalone local software,
-we might not fully disclose every issue within Google's standard
+program, which includes a dashboard of [publicly disclosed vulnerabilities](https://issues.oss-fuzz.com/issues?q=bitcoin-core%20status:open).
+
+Bitcoin Core follows its [security disclosure policy](https://bitcoincore.org/en/security-advisories/),
+which may differ from Google's standard
 [90-day disclosure window](https://google.github.io/oss-fuzz/getting-started/bug-disclosure-guidelines/)
-if a partial or delayed disclosure is important to protect users or the
-function of the network.
+.
 
 OSS-Fuzz also produces [a fuzzing coverage report](https://oss-fuzz.com/coverage-report/job/libfuzzer_asan_bitcoin-core/latest).