Bump postcss

Bumps [postcss](https://github.com/postcss/postcss) from 7.0.35 to 7.0.38.
- [Release notes](https://github.com/postcss/postcss/releases)
- [Changelog](https://github.com/postcss/postcss/blob/main/CHANGELOG.md)
- [Commits](https://github.com/postcss/postcss/compare/7.0.35...7.0.38)

---
updated-dependencies:
- dependency-name: postcss
  dependency-type: indirect
...

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

3-Data-Visualization/13-meaningful-visualizations/starter/package-lock.json

@@ -1715,7 +1715,6 @@
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@@ -1747,11 +1746,10 @@
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+          "version": "4.1.2",
-          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.0.tgz",
+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
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-          "optional": true,
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@@ -1762,7 +1760,6 @@
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@@ -1771,22 +1768,19 @@
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-          "optional": true
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-          "dev": true,
+          "dev": true
-          "optional": true
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-          "optional": true,
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@@ -1814,7 +1808,6 @@
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-          "optional": true,
           "requires": {
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@@ -1837,11 +1830,10 @@
           }
         },
         "vue-loader-v16": {
-          "version": "npm:vue-loader@16.1.2",
+          "version": "npm:vue-loader@16.8.1",
-          "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.1.2.tgz",
+          "resolved": "https://registry.npmjs.org/vue-loader/-/vue-loader-16.8.1.tgz",
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             "hash-sum": "^2.0.0",
@@ -7506,6 +7498,12 @@
       "dev": true,
       "optional": true
     },
+    "nanocolors": {
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+      "resolved": "https://registry.npmjs.org/nanocolors/-/nanocolors-0.2.11.tgz",
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+      "dev": true
+    },
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       "resolved": "https://registry.npmjs.org/nanomatch/-/nanomatch-1.2.13.tgz",
@@ -8231,14 +8229,13 @@
       "dev": true
     },
     "postcss": {
-      "version": "7.0.35",
+      "version": "7.0.38",
-      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.35.tgz",
+      "resolved": "https://registry.npmjs.org/postcss/-/postcss-7.0.38.tgz",
-      "integrity": "sha512-3QT8bBJeX/S5zKTTjTCIjRF3If4avAT6kqxcASlTWEtAFCb9NH0OUxNDfgZSWdP5fJnBYCMEWkIFfWeugjzYMg==",
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       "dev": true,
       "requires": {
-        "chalk": "^2.4.2",
+        "nanocolors": "^0.2.2",
-        "source-map": "^0.6.1",
+        "source-map": "^0.6.1"
-        "supports-color": "^6.1.0"
       },
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@@ -8246,15 +8243,6 @@
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-          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-6.1.0.tgz",
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-          "dev": true,
-          "requires": {
-            "has-flag": "^3.0.0"
-          }
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       }
     },