docs: update DMQ node to '0.7.0.0' in 'networks.json'

Author: jpraynaud

networks.json

@@ -4,7 +4,7 @@
       "mithril-signer": "10.6.2",
       "mithril-aggregator": "10.6.2"
     },
-    "dmq-minimum-version": "0.6.0.0",
+    "dmq-minimum-version": "0.7.0.0",
     "mithril-networks": [
       {
         "release-mainnet": {
@@ -41,7 +41,7 @@
       "mithril-signer": "10.6.2",
       "mithril-aggregator": "10.6.2"
     },
-    "dmq-minimum-version": "0.6.0.0",
+    "dmq-minimum-version": "0.7.0.0",
     "mithril-networks": [
       {
         "release-preprod": {
@@ -78,7 +78,7 @@
       "mithril-signer": "10.7.1",
       "mithril-aggregator": "10.7.1"
     },
-    "dmq-minimum-version": "0.6.0.0",
+    "dmq-minimum-version": "0.7.0.0",
     "mithril-networks": [
       {
         "pre-release-preview": {