Bump apollo-server-core from 2.23.0 to 2.26.2 #1208

Job	Run time
Linting	3m 22s
Should run tests	5s
Package Unit Tests	3m 17s
API Tests (0, mongoose)	3m 45s
API Tests (0, knex)	3m 10s
API Tests (0, prisma_postgresql)	3m 1s
API Tests (1, mongoose)	3m 24s
API Tests (1, knex)	4m 37s
API Tests (1, prisma_postgresql)	3m 4s
API Tests (2, mongoose)	4m 9s
API Tests (2, knex)	3m 16s
API Tests (2, prisma_postgresql)	2m 49s
API Tests (3, mongoose)	2m 58s
API Tests (3, knex)	3m 26s
API Tests (3, prisma_postgresql)	2m 58s
API Tests (4, mongoose)	2m 59s
API Tests (4, knex)	3m 18s
API Tests (4, prisma_postgresql)	3m 33s
API Tests (5, mongoose)	4m 9s
API Tests (5, knex)	2m 54s
API Tests (5, prisma_postgresql)	3m 11s
API Tests (6, mongoose)	3m 26s
API Tests (6, knex)	3m 36s
API Tests (6, prisma_postgresql)	5m 5s
API Tests (7, mongoose)	3m 51s
API Tests (7, knex)	3m 19s
API Tests (7, prisma_postgresql)	4m 23s
API Tests (8, mongoose)	3m 40s
API Tests (8, knex)	3m 18s
API Tests (8, prisma_postgresql)	4m 22s
Cypress tests (test-projects/basic)	3m 2s
Cypress tests (test-projects/login)	3m 36s
Cypress tests (test-projects/access-control)	3m 11s
Cypress tests (test-projects/client-validation)	3m 32s
	1h 55m 46s

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