Bump mocha from 6.2.2 to 7.0.0 (#2042)

Bumps [mocha](https://github.com/mochajs/mocha) from 6.2.2 to 7.0.0.
- [Release notes](https://github.com/mochajs/mocha/releases)
- [Changelog](https://github.com/mochajs/mocha/blob/master/CHANGELOG.md)
- [Commits](https://github.com/mochajs/mocha/compare/v6.2.2...v7.0.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package-lock.json

@@ -30391,13 +30391,14 @@
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-      "resolved": "https://registry.npmjs.org/mocha/-/mocha-6.2.2.tgz",
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         "debug": "3.2.6",
         "diff": "3.5.0",
         "escape-string-regexp": "1.0.5",
@@ -30410,7 +30411,7 @@
         "minimatch": "3.0.4",
         "mkdirp": "0.5.1",
         "ms": "2.1.1",
-        "node-environment-flags": "1.0.5",
+        "node-environment-flags": "1.0.6",
         "object.assign": "4.1.0",
         "strip-json-comments": "2.0.1",
         "supports-color": "6.0.0",
@@ -30680,9 +30681,9 @@
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@@ -30839,6 +30840,12 @@
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       "resolved": "https://registry.npmjs.org/object-keys/-/object-keys-1.1.1.tgz",
@@ -30875,13 +30882,81 @@
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-      "integrity": "sha1-h1jIRvW0B62rDyNuCYbxSwUcqhY=",
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       "dev": true,
       "requires": {
-        "define-properties": "^1.1.2",
-        "es-abstract": "^1.5.1"
+        "define-properties": "^1.1.3",
+        "es-abstract": "^1.17.0-next.1"
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+            "function-bind": "^1.1.1",
+            "has": "^1.0.3",
+            "has-symbols": "^1.0.1",
+            "is-callable": "^1.1.5",
+            "is-regex": "^1.0.5",
+            "object-inspect": "^1.7.0",
+            "object-keys": "^1.1.1",
+            "object.assign": "^4.1.0",
+            "string.prototype.trimleft": "^2.1.1",
+            "string.prototype.trimright": "^2.1.1"
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+        },
+        "es-to-primitive": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/es-to-primitive/-/es-to-primitive-1.2.1.tgz",
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+            "is-date-object": "^1.0.1",
+            "is-symbol": "^1.0.2"
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+          "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
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+          "dev": true,
+          "requires": {
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+        "has-symbols": {
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+          "resolved": "https://registry.npmjs.org/is-callable/-/is-callable-1.1.5.tgz",
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       }
     },
     "object.pick": {
@@ -33660,6 +33735,42 @@
         }
       }
     },
+    "string.prototype.trimleft": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/string.prototype.trimleft/-/string.prototype.trimleft-2.1.1.tgz",
+      "integrity": "sha512-iu2AGd3PuP5Rp7x2kEZCrB2Nf41ehzh+goo8TV7z8/XDBbsvc6HQIlUl9RjkZ4oyrW1XM5UwlGl1oVEaDjg6Ag==",
+      "dev": true,
+      "requires": {
+        "define-properties": "^1.1.3",
+        "function-bind": "^1.1.1"
+      },
+      "dependencies": {
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+          "version": "1.1.1",
+          "resolved": "https://registry.npmjs.org/function-bind/-/function-bind-1.1.1.tgz",
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+    "string.prototype.trimright": {
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     "string_decoder": {
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package.json

@@ -61,7 +61,7 @@
     "ganache-core-coverage": "https://github.com/OpenZeppelin/ganache-core-coverage/releases/download/2.5.3-coverage/ganache-core-coverage-2.5.3.tgz",
     "lodash.startcase": "^4.4.0",
     "micromatch": "^4.0.2",
-    "mocha": "^6.2.2",
+    "mocha": "^7.0.0",
     "openzeppelin-docs-utils": "github:OpenZeppelin/docs-utils",
     "solhint": "2.3.0",
     "solidity-coverage": "github:rotcivegaf/solidity-coverage#5875f5b7bc74d447f3312c9c0e9fc7814b482477",