rename solidityTest to solidityTests in config

Other elements of the config are plurallized. We are changing this for
consistency.

Resolves #7057

Author: kanej

v-next/example-project/hardhat.config.ts

@@ -211,7 +211,7 @@ const config: HardhatUserConfig = {
     mocha: {
       color: true,
     },
-    solidityTest: {
+    solidityTests: {
       timeout: 1000,
     },
   },

v-next/hardhat/src/internal/builtin-plugins/solidity-test/config.ts

@@ -104,7 +104,7 @@ export async function resolveSolidityTestUserConfig(
 
   const solidityTest = {
     rpcCachePath: defaultRpcCachePath,
-    ...userConfig.test?.solidityTest,
+    ...userConfig.test?.solidityTests,
   };
 
   return {
@@ -118,7 +118,7 @@ export async function resolveSolidityTestUserConfig(
     },
     test: {
       ...resolvedConfig.test,
-      solidityTest,
+      solidityTests: solidityTest,
     },
   };
 }

v-next/hardhat/src/internal/builtin-plugins/solidity-test/task-action.ts

@@ -119,7 +119,7 @@ const runSolidityTests: NewTaskActionFunction<TestActionArguments> = async (
   let includesFailures = false;
   let includesErrors = false;
 
-  const solidityTestConfig = hre.config.test.solidityTest;
+  const solidityTestConfig = hre.config.test.solidityTests;
   let observabilityConfig: ObservabilityConfig | undefined;
   if (hre.globalOptions.coverage) {
     assertHardhatInvariant(

v-next/hardhat/src/internal/builtin-plugins/solidity-test/type-extensions.ts

@@ -60,13 +60,13 @@ declare module "../../../types/test.js" {
   }
 
   export interface HardhatTestUserConfig {
-    solidityTest?: SolidityTestUserConfig;
+    solidityTests?: SolidityTestUserConfig;
   }
 
   // eslint-disable-next-line @typescript-eslint/no-empty-interface -- This could be an extension point
   export interface SolidityTestConfig extends SolidityTestUserConfig {}
 
   export interface HardhatTestConfig {
-    solidityTest: SolidityTestConfig;
+    solidityTests: SolidityTestConfig;
   }
 }

v-next/hardhat/test/internal/builtin-plugins/test/config.ts

@@ -18,7 +18,7 @@ describe("test/config", function () {
 
   it("should keep the existing `test` config  provided", async () => {
     const existingTestConfig = {
-      solidityTest: {
+      solidityTests: {
         timeout: 123,
       },
     };
@@ -29,8 +29,8 @@ describe("test/config", function () {
     });
 
     assert.equal(
-      hre.config.test.solidityTest.timeout,
-      existingTestConfig.solidityTest.timeout,
+      hre.config.test.solidityTests.timeout,
+      existingTestConfig.solidityTests.timeout,
     );
   });
 });