chore: enable lmdb by default and update node for next major (#32695)

* feat: update node to 14.15.0
* feat: add lmdb as a default
* fix patches
* change tag for publish
* force enable pqr
* update babel-preset-patch
* add patch for peerDeps to v4
* Update 1-lmdb-default.patch
* Update 1-lmdb-default.patch

Author: wardpeet

packages/gatsby/src/utils/flags.ts

@@ -203,6 +203,10 @@ const activeFlags: Array<IFlag> = [
     umbrellaIssue: `https://gatsby.dev/lmdb-feedback`,
     description: `Store nodes in a persistent embedded database (vs in-memory). Lowers peak memory usage. Requires Node v14.10 or above.`,
     testFitness: (): fitnessEnum => {
+      if (_CFLAGS_.GATSBY_MAJOR === `4`) {
+        return `LOCKED_IN`
+      }
+
       const [major, minor] = process.versions.node.split(`.`)
       return (Number(major) === 14 && Number(minor) >= 10) || Number(major) > 14
     },
@@ -218,6 +222,10 @@ const activeFlags: Array<IFlag> = [
     description: `Parallelize running page queries in order to better saturate all available cores. Improves time it takes to run queries during gatsby build. Requires Node v14.10 or above.`,
     includedFlags: [`LMDB_STORE`],
     testFitness: (): fitnessEnum => {
+      if (_CFLAGS_.GATSBY_MAJOR === `4`) {
+        return `LOCKED_IN`
+      }
+
       const [major, minor] = process.versions.node.split(`.`)
       return (Number(major) === 14 && Number(minor) >= 10) || Number(major) > 14
     },