Add command-line flags to configure mutex profile fraction and block profile rate for pyroscope profiling instead of using hardcoded values:

• --pyroscope-mutex-profile-fraction: sampling rate for mutex profiling (default: 5)
• --pyroscope-block-profile-rate: block profile rate in nanoseconds (default: 1)

Flags are available on rpcprovider, rpcconsumer, and rpcsmartrouter commands.

Description

Closes: #XXXX

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