feat: add fermium to evergreen test runs (#2762)

Author: durran

.evergreen/config.yml

@@ -1245,6 +1245,12 @@ buildvariants:
     expansions:
       NODE_LTS_NAME: erbium
     tasks: *ref_0
+  - name: macos-1014-fermium
+    display_name: macOS 10.14 Node Fermium
+    run_on: macos-1014
+    expansions:
+      NODE_LTS_NAME: fermium
+    tasks: *ref_0
   - name: rhel70-dubnium
     display_name: RHEL 7.0 Node Dubnium
     run_on: rhel70-small
@@ -1312,6 +1318,12 @@ buildvariants:
     expansions:
       NODE_LTS_NAME: erbium
     tasks: *ref_1
+  - name: rhel70-fermium
+    display_name: RHEL 7.0 Node Fermium
+    run_on: rhel70-small
+    expansions:
+      NODE_LTS_NAME: fermium
+    tasks: *ref_1
   - name: ubuntu-14.04-dubnium
     display_name: Ubuntu 14.04 Node Dubnium
     run_on: ubuntu1404-large
@@ -1346,6 +1358,12 @@ buildvariants:
     expansions:
       NODE_LTS_NAME: erbium
     tasks: *ref_2
+  - name: ubuntu-14.04-fermium
+    display_name: Ubuntu 14.04 Node Fermium
+    run_on: ubuntu1404-large
+    expansions:
+      NODE_LTS_NAME: fermium
+    tasks: *ref_2
   - name: ubuntu-18.04-dubnium
     display_name: Ubuntu 18.04 Node Dubnium
     run_on: ubuntu1804-large
@@ -1409,6 +1427,13 @@ buildvariants:
       NODE_LTS_NAME: erbium
       CLIENT_ENCRYPTION: true
     tasks: *ref_3
+  - name: ubuntu-18.04-fermium
+    display_name: Ubuntu 18.04 Node Fermium
+    run_on: ubuntu1804-large
+    expansions:
+      NODE_LTS_NAME: fermium
+      CLIENT_ENCRYPTION: true
+    tasks: *ref_3
   - name: windows-64-vs2015-dubnium
     display_name: Windows (VS2015) Node Dubnium
     run_on: windows-64-vs2015-large
@@ -1446,6 +1471,13 @@ buildvariants:
       NODE_LTS_NAME: erbium
       MSVS_VERSION: 2015
     tasks: *ref_4
+  - name: windows-64-vs2015-fermium
+    display_name: Windows (VS2015) Node Fermium
+    run_on: windows-64-vs2015-large
+    expansions:
+      NODE_LTS_NAME: fermium
+      MSVS_VERSION: 2015
+    tasks: *ref_4
   - name: windows-64-vs2017-dubnium
     display_name: Windows (VS2017) Node Dubnium
     run_on: windows-64-vs2017-large
@@ -1460,6 +1492,13 @@ buildvariants:
       NODE_LTS_NAME: erbium
       MSVS_VERSION: 2017
     tasks: *ref_4
+  - name: windows-64-vs2017-fermium
+    display_name: Windows (VS2017) Node Fermium
+    run_on: windows-64-vs2017-large
+    expansions:
+      NODE_LTS_NAME: fermium
+      MSVS_VERSION: 2017
+    tasks: *ref_4
   - name: lint
     display_name: lint
     run_on: rhel70

.evergreen/generate_evergreen_tasks.js

@@ -4,7 +4,7 @@ const yaml = require('js-yaml');
 
 const LATEST_EFFECTIVE_VERSION = '5.0';
 const MONGODB_VERSIONS = ['latest', '4.4', '4.2', '4.0', '3.6', '3.4', '3.2', '3.0', '2.6'];
-const NODE_VERSIONS = ['dubnium', 'erbium'];
+const NODE_VERSIONS = ['dubnium', 'erbium', 'fermium'];
 const TOPOLOGIES = ['server', 'replica_set', 'sharded_cluster'];
 const AWS_AUTH_VERSIONS = ['latest', '4.4'];
 const OCSP_VERSIONS = ['latest', '4.4'];