feat: ipns max cache ttl

Author: hacdias

docs/environment-variables.md

@@ -84,7 +84,7 @@ The maximum duration which entries are valid in the name system cache. They are
 
 When `RAINBOW_IPNS_MAX_CACHE_TTL` is set, it defines the upper bound limit of how long a [IPNS Name](https://specs.ipfs.tech/ipns/ipns-record/#ipns-name) lookup result will be cached and read from cache before checking for updates.
 
-Default: No upper bound, [TTL from IPNS Record](https://specs.ipfs.tech/ipns/ipns-record/#ttl-uint64)  (see `ipns name publish --help`) is always respected.
+Default: No upper bound, [TTL from IPNS Record](https://specs.ipfs.tech/ipns/ipns-record/#ttl-uint64)
 
 ### `KUBO_RPC_URL`