Bug fix for FastRawTransactionManager.resetNonce

[junsung-cho]

What does this PR do?

Make FastRawTransactionManager.resetNonce() reset the nonce

Where should the reviewer start?

#2002

Why is it needed?

AS-IS

    public synchronized void resetNonce() throws IOException {
        nonce = super.getNonce();
    }

TO-BE

    public synchronized void resetNonce() throws IOException {
        nonce = BigInteger.valueOf(-1);
    }

While the AS-IS reset nonce with the current nonce, if getNonce() is called, it will return currentNonce + 1.

    @Override
    protected synchronized BigInteger getNonce() throws IOException {
        if (nonce.signum() == -1) {
            // obtain lock
            nonce = super.getNonce();
        } else {
            nonce = nonce.add(BigInteger.ONE); // this line will be called
        }
        return nonce;
    }

Checklist

• I've read the contribution guidelines.
• I've added tests (if applicable).
• I've added a changelog entry if necessary.

fix #2002

[gtebrean]

@junsung-cho Looks good to me, please also update the changelog.md and I will merge it

[junsung-cho]

@gtebrean I updated CHANGELOG.md, thanks

[junsung-cho]

@gtebrean Integration test failed, but I don't know why.

BesuPrivacyQuickstartIntegrationTest > simplePrivateTransactions() FAILED
    org.opentest4j.AssertionFailedError at BesuPrivacyQuickstartIntegrationTest.java:193

[NickSneo]

@gtebrean Integration test failed, but I don't know why.

BesuPrivacyQuickstartIntegrationTest > simplePrivateTransactions() FAILED
    org.opentest4j.AssertionFailedError at BesuPrivacyQuickstartIntegrationTest.java:193

It is a bit flaky test, I will rerun it