Add option to not start any EL, CL or MEV (#358)

This profile is simply not existing, so it won't start any EL/CL/MEV
profile.

Author: KaloyanTanev

.env.sample.holesky

@@ -7,12 +7,14 @@ NETWORK=holesky
 # Execution layer client to be used in a DV setup. Uncomment only the desired client.
 EL=el-nethermind
 #EL=el-reth
+#EL=el-none
 
 # Consensus layer client to be used in a DV setup. Uncomment only the desired client.
 CL=cl-lighthouse
 #CL=cl-grandine
 #CL=cl-teku
 #CL=cl-lodestar
+#CL=cl-none
 
 # Validator client to be used in a DV setup. Uncomment only the desired client.
 VC=vc-lodestar
@@ -23,6 +25,7 @@ VC=vc-lodestar
 # MEV client to be used in a DV setup. Uncomment only the desired client.
 MEV=mev-mevboost
 #MEV=mev-commitboost
+#MEV=mev-none
 
 # Do not edit. These profiles and files dictate Docker which client types and from where to start for execution, consensus, validator and MEV.
 # The actual adjustable values are specified above

.env.sample.hoodi

@@ -7,12 +7,14 @@ NETWORK=hoodi
 # Execution layer client to be used in a DV setup. Uncomment only the desired client.
 EL=el-nethermind
 #EL=el-reth
+#EL=el-none
 
 # Consensus layer client to be used in a DV setup. Uncomment only the desired client.
 CL=cl-lighthouse
 #CL=cl-grandine
 #CL=cl-teku
 #CL=cl-lodestar
+#CL=cl-none
 
 # Validator client to be used in a DV setup. Uncomment only the desired client.
 VC=vc-lodestar
@@ -23,6 +25,7 @@ VC=vc-lodestar
 # MEV client to be used in a DV setup. Uncomment only the desired client.
 MEV=mev-mevboost
 #MEV=mev-commitboost
+#MEV=mev-none
 
 # Do not edit. These profiles and files dictate Docker which client types and from where to start for execution, consensus, validator and MEV.
 # The actual adjustable values are specified above

.env.sample.mainnet

@@ -7,12 +7,14 @@ NETWORK=mainnet
 # Execution layer client to be used in a DV setup. Uncomment only the desired client.
 EL=el-nethermind
 #EL=el-reth
+#EL=el-none
 
 # Consensus layer client to be used in a DV setup. Uncomment only the desired client.
 CL=cl-lighthouse
 #CL=cl-grandine
 #CL=cl-teku
 #CL=cl-lodestar
+#CL=cl-none
 
 # Validator client to be used in a DV setup. Uncomment only the desired client.
 VC=vc-lodestar
@@ -23,6 +25,7 @@ VC=vc-lodestar
 # MEV client to be used in a DV setup. Uncomment only the desired client.
 MEV=mev-mevboost
 #MEV=mev-commitboost
+#MEV=mev-none
 
 # Do not edit. These profiles and files dictate Docker which client types and from where to start for execution, consensus, validator and MEV.
 # The actual adjustable values are specified above