Bump ajv from 6.10.0 to 6.12.6

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.10.0 to 6.12.6.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](https://github.com/ajv-validator/ajv/compare/v6.10.0...v6.12.6)

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

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

css/content.css

@@ -104,6 +104,7 @@
 
 .content .twitter-tweet {
   width: auto !important;
+  margin: 0 auto;
 }
 
 .content .wp-caption {
@@ -146,6 +147,12 @@
   font-size: 0.8rem;
 }
 
+.content .wp-block-table {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
 .content figcaption {
   font-size: var(--size-body-extra-small);
   font-style: italic;
@@ -171,12 +178,8 @@
   }
 }
 
-.content th,
-.content tr,
 .content td {
-  border-width: 0 0 1px;
-  border-style: solid;
-  border-color: var(--color-dark-blue);
+  border: 1px solid var(--color-dark-blue);
   padding: var(--space-xs);
 }
 

package-lock.json

@@ -2153,14 +2153,21 @@
       "integrity": "sha1-/ts5T58OAqqXaOcCvaI7UF+ufh8="
     },
     "ajv": {
-      "version": "6.10.0",
-      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.10.0.tgz",
-      "integrity": "sha512-nffhOpkymDECQyR0mnsUtoCE8RlX38G0rYP+wgLWFyZuUyuuojSSvi/+euOiQBIn63whYwYVIIH1TvE3tu4OEg==",
+      "version": "6.12.6",
+      "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+      "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
       "requires": {
-        "fast-deep-equal": "^2.0.1",
+        "fast-deep-equal": "^3.1.1",
         "fast-json-stable-stringify": "^2.0.0",
         "json-schema-traverse": "^0.4.1",
         "uri-js": "^4.2.2"
+      },
+      "dependencies": {
+        "fast-deep-equal": {
+          "version": "3.1.3",
+          "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-3.1.3.tgz",
+          "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q=="
+        }
       }
     },
     "alphanum-sort": {
@@ -5780,11 +5787,6 @@
       "resolved": "https://registry.npmjs.org/eyes/-/eyes-0.1.8.tgz",
       "integrity": "sha1-Ys8SAjTGg3hdkCNIqADvPgzCC8A="
     },
-    "fast-deep-equal": {
-      "version": "2.0.1",
-      "resolved": "https://registry.npmjs.org/fast-deep-equal/-/fast-deep-equal-2.0.1.tgz",
-      "integrity": "sha1-ewUhjd+WZ79/Nwv3/bLLFf3Qqkk="
-    },
     "fast-diff": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/fast-diff/-/fast-diff-1.2.0.tgz",
@@ -10779,9 +10781,9 @@
       "integrity": "sha1-QRyttXTFoUDTpLGRDUDYDMn0C0A="
     },
     "path-parse": {
-      "version": "1.0.7",
-      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.7.tgz",
-      "integrity": "sha512-LDJzPVEEEPR+y48z93A0Ed0yXb8pAByGWo/k5YYdYgpY2/2EsOsksJrq7lOHxryrVOn1ejG6oAp8ahvOIQD8sw=="
+      "version": "1.0.6",
+      "resolved": "https://registry.npmjs.org/path-parse/-/path-parse-1.0.6.tgz",
+      "integrity": "sha512-GSmOT2EbHrINBf9SR7CDELwlJ8AENk3Qn7OikK4nFYAu3Ote2+JYNVvkpAEQm3/TLNEJFD/xZJjzyxg3KBWOzw=="
     },
     "path-type": {
       "version": "3.0.0",
@@ -13959,17 +13961,6 @@
           "resolved": "https://registry.npmjs.org/@nodelib/fs.stat/-/fs.stat-2.0.3.tgz",
           "integrity": "sha512-bQBFruR2TAwoevBEd/NWMoAAtNGzTRgdrqnYCc7dhzfoNvqPzLyqlEQnzZ3kVnNrSp25iyxE00/3h2fqGAGArA=="
         },
-        "ajv": {
-          "version": "6.12.2",
-          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.2.tgz",
-          "integrity": "sha512-k+V+hzjm5q/Mr8ef/1Y9goCmlsK4I6Sm74teeyGvFk1XrOsbsKLjEdrvny42CZ+a8sXbk8KWpY/bDwS+FLL2UQ==",
-          "requires": {
-            "fast-deep-equal": "^3.1.1",
-            "fast-json-stable-stringify": "^2.0.0",
-            "json-schema-traverse": "^0.4.1",
-            "uri-js": "^4.2.2"
-          }
-        },
         "ansi-regex": {
           "version": "5.0.0",
           "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.0.tgz",