upload benchmark to central ci db

```sql
CREATE TABLE benchmarks(
    "timestamp" timestamptz NOT NULL DEFAULT (current_setting('veloren.timestamp')::timestamptz),
    branch text NOT NULL DEFAULT current_setting('veloren.branch'),
    sha text NOT NULL DEFAULT current_setting('veloren.sha'),
    "group" text NULL,
    "function" text NULL,
    "value" text NULL,
    throughput_num numeric NULL,
    throughput_type text NULL,
    sample_measured_value numeric NOT NULL,
    unit text NULL,
    iteration_count numeric NULL
);
```

.gitlab/CI/build.gitlab-ci.yml

@@ -13,10 +13,21 @@ unittests:
 benchmarks:
   extends: .recompile-branch
   stage: build
+  tags:
+    - veloren-benchmark
   script:
     - unset DISABLE_GIT_LFS_CHECK
     - ln -s /dockercache/cache-all target
     - cargo bench
+    - echo 'SET veloren.timestamp = "'"$(git show --no-patch --no-notes --pretty='%cd' HEAD)"'";' > upload.sql
+    - echo 'SET veloren.branch = "'"${CI_COMMIT_REF_NAME}"'";' >> upload.sql
+    - echo 'SET veloren.sha = "'"${CI_COMMIT_SHA}"'";' >> upload.sql
+    - find . -wholename "*new/*.csv" -exec echo '\copy benchmarks ("group", "function", "value", throughput_num, throughput_type, sample_measured_value, unit, iteration_count) from '"'{}' csv header" >> upload.sql \;
+    - cat upload.sql
+    - mkdir -p /usr/share/man/man1/ /usr/share/man/man3/ /usr/share/man/man7/
+    - apt-get update
+    - apt-get -y install postgresql-client
+    - PGPASSWORD="${CIDBPASSWORD}" PGSSLROOTCERT="./.gitlab/ci-db.crt" psql "sslmode=verify-ca host=auth.veloren.net dbname=benchmarks" -U bsdrftsejrhdrjhgd -f upload.sql;
   retry:
     max: 2
 

.gitlab/ci-db.crt

@@ -0,0 +1,77 @@
+Certificate:
+    Data:
+        Version: 3 (0x2)
+        Serial Number:
+            7e:a1:f6:77:25:97:c3:df:8c:9a:49:8c:e9:0b:a7:6b:eb:13:24:48
+        Signature Algorithm: sha256WithRSAEncryption
+        Issuer: CN = auth.veloren.net
+        Validity
+            Not Before: Sep 29 22:19:43 2020 GMT
+            Not After : Sep 29 22:19:43 2021 GMT
+        Subject: CN = auth.veloren.net
+        Subject Public Key Info:
+            Public Key Algorithm: rsaEncryption
+                RSA Public-Key: (2048 bit)
+                Modulus:
+                    00:c2:ed:db:b2:ad:04:c7:6b:b9:2f:8f:02:a1:49:
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+                    22:a8:53:1b:95:49:67:3a:0f:ce:93:d6:b6:91:fb:
+                    6e:bd
+                Exponent: 65537 (0x10001)
+        X509v3 extensions:
+            X509v3 Subject Key Identifier: 
+                B0:DE:60:C1:E1:59:91:C8:9B:F8:4D:9A:9E:48:5B:29:81:F0:98:6D
+            X509v3 Authority Key Identifier: 
+                keyid:B0:DE:60:C1:E1:59:91:C8:9B:F8:4D:9A:9E:48:5B:29:81:F0:98:6D
+
+            X509v3 Basic Constraints: critical
+                CA:TRUE
+    Signature Algorithm: sha256WithRSAEncryption
+         25:65:e9:80:0b:65:0b:bf:e4:84:23:2a:68:bd:bc:97:bf:37:
+         ae:4d:bb:6b:bd:f9:7a:8b:5c:1f:dd:e2:4f:e2:43:d1:4f:58:
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+         b0:6d:6e:fb
+-----BEGIN CERTIFICATE-----
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+-----END CERTIFICATE-----