feat: migrate MEP Black Star Promos to new variant format

Moves thirdParty tcgplayer IDs into variants array and removes old boolean variant fields. Adds 8 missing promo cards (071-080).

Author: pragmaticivan

data/Mega Evolution/MEP Black Star Promos/009.ts

@@ -74,7 +74,7 @@ const card: Card = {
 	regulationMark: "I",
 
 	thirdParty: {
-		tcgplayer: 654597,
+		tcgplayer: 656259,
 		cardmarket: 851047
 	},
 	variants: [

data/Mega Evolution/MEP Black Star Promos/018.ts

@@ -46,9 +46,14 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 664051
+	},
+
 	variants: [
 		{
-			type: "holo"
+			type: "holo",
+			foil: "cosmos"
 		}
 	]
 }

data/Mega Evolution/MEP Black Star Promos/019.ts

@@ -77,9 +77,14 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 664054
+	},
+
 	variants: [
 		{
-			type: "holo"
+			type: "holo",
+			foil: "cosmos"
 		}
 	]
 }

data/Mega Evolution/MEP Black Star Promos/020.ts

@@ -52,9 +52,14 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 664055
+	},
+
 	variants: [
 		{
-			type: "holo"
+			type: "holo",
+			foil: "cosmos"
 		}
 	]
 }

data/Mega Evolution/MEP Black Star Promos/021.ts

@@ -70,9 +70,14 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 664063
+	},
+
 	variants: [
 		{
-			type: "holo"
+			type: "holo",
+			foil: "cosmos"
 		}
 	]
 }

data/Mega Evolution/MEP Black Star Promos/022.ts

@@ -59,6 +59,10 @@ const card: Card = {
 	retreat: 2,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 666538
+	},
+
 	variants: [
 		{
 			type: "holo"

data/Mega Evolution/MEP Black Star Promos/023.ts

@@ -58,6 +58,10 @@ const card: Card = {
 	retreat: 2,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 659612
+	},
+
 	variants: [
 		{
 			type: "holo"

data/Mega Evolution/MEP Black Star Promos/024.ts

@@ -62,6 +62,10 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 664010
+	},
+
 	variants: [
 		{
 			type: "holo"

data/Mega Evolution/MEP Black Star Promos/025.ts

@@ -71,6 +71,10 @@ const card: Card = {
 	retreat: 3,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 668509
+	},
+
 	variants: [
 		{
 			type: "holo"

data/Mega Evolution/MEP Black Star Promos/026.ts

@@ -59,6 +59,10 @@ const card: Card = {
 	retreat: 1,
 	regulationMark: "I",
 
+	thirdParty: {
+		tcgplayer: 659231
+	},
+
 	variants: [
 		{
 			type: "holo"