ci(NODE-7490): pin npm to 11.11.1 for BSON compat tasks

Author: PavelSafronov

.evergreen/config.in.yml

@@ -997,6 +997,8 @@ tasks:
             - { key: VERSION, value: latest }
             - { key: NODE_LTS_VERSION, value: "20.19.0" }
       - func: install dependencies
+        vars:
+          NPM_VERSION: "11.11.1"
       - func: switch source
         vars:
           SOURCE_REV: refs/tags/v7.0.0
@@ -1019,6 +1021,8 @@ tasks:
             - { key: CLIENT_ENCRYPTION, value: "false" }
             - { key: NODE_LTS_VERSION, value: "20.19.0" }
       - func: install dependencies
+        vars:
+          NPM_VERSION: "11.11.1"
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars:
@@ -1042,6 +1046,8 @@ tasks:
             - { key: CLIENT_ENCRYPTION, value: "false" }
             - { key: NODE_LTS_VERSION, value: "20.19.0" }
       - func: install dependencies
+        vars:
+          NPM_VERSION: "11.11.1"
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars:
@@ -1065,6 +1071,8 @@ tasks:
             - { key: CLIENT_ENCRYPTION, value: "false" }
             - { key: NODE_LTS_VERSION, value: "20.19.0" }
       - func: install dependencies
+        vars:
+          NPM_VERSION: "11.11.1"
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars:

.evergreen/config.yml

@@ -921,6 +921,8 @@ tasks:
             - {key: VERSION, value: latest}
             - {key: NODE_LTS_VERSION, value: 20.19.0}
       - func: install dependencies
+        vars:
+          NPM_VERSION: 11.11.1
       - func: switch source
         vars:
           SOURCE_REV: refs/tags/v7.0.0
@@ -942,6 +944,8 @@ tasks:
             - {key: CLIENT_ENCRYPTION, value: 'false'}
             - {key: NODE_LTS_VERSION, value: 20.19.0}
       - func: install dependencies
+        vars:
+          NPM_VERSION: 11.11.1
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars:
@@ -964,6 +968,8 @@ tasks:
             - {key: CLIENT_ENCRYPTION, value: 'false'}
             - {key: NODE_LTS_VERSION, value: 20.19.0}
       - func: install dependencies
+        vars:
+          NPM_VERSION: 11.11.1
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars:
@@ -986,6 +992,8 @@ tasks:
             - {key: CLIENT_ENCRYPTION, value: 'false'}
             - {key: NODE_LTS_VERSION, value: 20.19.0}
       - func: install dependencies
+        vars:
+          NPM_VERSION: 11.11.1
       - func: bootstrap mongo-orchestration
       - func: switch source
         vars: