Bump campaign versions

Bump to v10.4:
- Mount Barrigada
- Landing at Agat
- Northern Russia
- Operation Dynamo

resources/campaigns/marianas_guam_barrigada.yaml

@@ -5,7 +5,7 @@ authors: Ghosti
 description: <p>The objective of this campaign is the capture of Guam. Blue side, having landed their forces on the beaches of Agat, controls Antonio B. Won Pat airfield and are pushing towards the enemy stronghold of Mount Barrigada.</p>
 miz: marianas_guam_barrigada.miz
 performance: 2
-version: "9.0"
+version: "10.4"
 squadrons:
   Blue CV:
     - primary: BARCAP

resources/campaigns/marianas_guam_landing_at_agat.yaml

@@ -5,7 +5,7 @@ authors: Ghosti
 description: <p>The objective of this campaign is the capture of Guam. Blue side, having landed their forces on the beaches of Agat, are pushing inland. <strong>Note:</strong> This campaign requires a carrier-capable (or LHA-capable) BLUFOR faction to be able to field aircraft.</p>
 miz: marianas_guam_landing_at_agat.miz
 performance: 2
-version: "9.0"
+version: "10.4"
 squadrons:
   Blue CV:
     - primary: BARCAP

resources/campaigns/northern_russia.yaml

@@ -8,7 +8,7 @@ recommended_enemy_faction: Russia 1975
 recommended_start_date: 1995-06-13
 miz: northern_russia.miz
 performance: 2
-version: "9.1"
+version: "10.4"
 squadrons:
   # Kutaisi
   25:

resources/campaigns/operation_dynamo.yaml

@@ -6,7 +6,7 @@ recommended_enemy_faction: "Germany 1940"
 description: "<p>The Battle of Dunkirk (French: Bataille de Dunkerque) was fought around the French port of Dunkirk (Dunkerque) during the Second World War, between the Allies and Nazi Germany. As the Allies were losing the Battle of France on the Western Front, the Battle of Dunkirk was the defence and evacuation of British and other Allied forces to Britain from 26 May to 4 June 1940..</p>"
 miz: "operation_dynamo.miz"
 performance: 1
-version: "9.0"
+version: "10.4"
 squadrons:
   # Manston
   5: